In the prologue, after the second "episode" on the tower, when i choose to play the part with the dragon there's a loading screen but than the game quits to the desktop without any errordescribtion. Does someone have the same problem? And how can i solve it, i just but it today...!

welcome to PC.
Give out all your PC details like CPU/RAM/Video card and OS version.
I reccomend you run dxdiag and export the details to a text file. then upload it.

Hallo, here is the dxdiag-file!
I hope there's any solution... Thanks.

The forum doesn't accept the format of my file, so i paste it here:

------------------
System Information
------------------
Time of this report: 9/14/2011, 13:08:13
Machine name: GASTAUFERDEN
Operating System: Windows XP Home Edition (5.1, Build 2600) Service Pack 3 (2600.xpsp_sp3_gdr.101209-1647)
Language: German (Regional Setting: German)
System Manufacturer: Dell Inc.
System Model: Dell DM061
BIOS: Phoenix ROM BIOS PLUS Version 1.10 2.4.0
Processor: Intel(R) Core(TM)2 CPU 4300 @ 1.80GHz (2 CPUs)
Memory: 2046MB RAM
Page File: 512MB used, 4446MB available
Windows Dir: C:\WINDOWS
DirectX Version: DirectX 9.0c (4.09.0000.0904)
DX Setup Parameters: Not found
DxDiag Version: 5.03.2600.5512 32bit Unicode

------------
DxDiag Notes
------------
DirectX Files Tab: No problems found.
Display Tab 1: No problems found. DirectDraw test results: All tests were successful. Direct3D 7 test results: All tests were successful. Direct3D 8 test results: All tests were successful. Direct3D 9 test results: All tests were successful.
Sound Tab 1: DirectSound test results: All tests were successful.
Music Tab: DirectMusic test results: All tests were successful.
Input Tab: No problems found.
Network Tab: No problems found. DirectPlay test results: All tests were successful.

--------------------
DirectX Debug Levels
--------------------
Direct3D: 0/4 (n/a)
DirectDraw: 0/4 (retail)
DirectInput: 0/5 (n/a)
DirectMusic: 0/5 (n/a)
DirectPlay: 0/9 (retail)
DirectSound: 0/5 (retail)
DirectShow: 0/6 (retail)

---------------
Display Devices
---------------
Card name: ATI Radeon HD 4600 Series
Manufacturer: ATI Technologies Inc.
Chip type: ATI Radeon Graphics Processor (0x9490)
DAC type: Internal DAC(400MHz)
Device Key: Enum\PCI\VEN_1002&DEV_9490&SUBSYS_E880174B&REV_00
Display Memory: 512.0 MB
Current Mode: 1920 x 1080 (32 bit) (60Hz)
Monitor: Plug und Play-Monitor
Monitor Max Res: 1600,1200
Driver Name: ati2dvag.dll
Driver Version: 6.14.0010.7119 (English)
DDI Version: 9 (or higher)
Driver Attributes: Final Retail
Driver Date/Size: 8/26/2010 03:56:36, 300544 bytes
WHQL Logo'd: n/a
WHQL Date Stamp: n/a
VDD: Nicht zutreffend
Mini VDD: ati2mtag.sys
Mini VDD Date: 8/26/2010 05:33:38, 5386752 bytes
Device Identifier: {D7B71EE2-D7D0-11CF-346F-8AC8A1C2CB35}
Vendor ID: 0x1002
Device ID: 0x9490
SubSys ID: 0xE880174B
Revision ID: 0x0000
Revision ID: 0x0000
Video Accel: ModeMPEG2_C ModeMPEG2_D
Deinterlace Caps: {6E8329FF-B642-418B-BCF0-BCB6591E255F}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(YUY2,YUY2) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{6E8329FF-B642-418B-BCF0-BCB6591E255F}: Format(In/Out)=(UYVY,UYVY) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(UYVY,UYVY) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
{3C5323C1-6FB7-44F5-9081-056BF2EE449D}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,2) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{552C0DAD-CCBC-420B-83C8-74943CF9F1A6}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,2) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{6E8329FF-B642-418B-BCF0-BCB6591E255F}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,1) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_PixelAdaptive
{335AA36E-7884-43A4-9C91-7F87FAF3E37E}: Format(In/Out)=(NV12,0x3231564e) Frames(Prev/Fwd/Back)=(0,0,0) Caps=VideoProcess_YUV2RGB VideoProcess_StretchX VideoProcess_StretchY DeinterlaceTech_BOBVerticalStretch
Registry: OK
DDraw Status: Enabled
D3D Status: Enabled
AGP Status: Enabled
DDraw Test Result: All tests were successful.
D3D7 Test Result: All tests were successful.
D3D8 Test Result: All tests were successful.
D3D9 Test Result: All tests were successful.

-------------
Sound Devices
-------------
Description: SigmaTel Audio
Default Sound Playback: Yes
Default Voice Playback: Yes
Hardware ID: HDAUDIO\FUNC_01&VEN_8384&DEV_7618&SUBSYS_102801DD&REV_1002
Manufacturer ID: 1
Product ID: 100
Type: WDM
Driver Name: sthda.sys
Driver Version: 5.10.4991.0000 (English)
Driver Attributes: Final Retail
WHQL Logo'd: n/a
Date and Size: 3/20/2006 16:06:04, 1156648 bytes
Other Files:
Driver Provider: SigmaTel
HW Accel Level: Full
Cap Flags: 0x0
Min/Max Sample Rate: 0, 0
Static/Strm HW Mix Bufs: 0, 0
Static/Strm HW 3D Bufs: 0, 0
HW Memory: 0
Voice Management: No
EAX(tm) 2.0 Listen/Src: No, No
I3DL2(tm) Listen/Src: No, No
Sensaura(tm) ZoomFX(tm): No
Registry: OK
Sound Test Result: All tests were successful.

---------------------
Sound Capture Devices
---------------------
Description: SigmaTel Audio
Default Sound Capture: Yes
Default Voice Capture: Yes
Driver Name: sthda.sys
Driver Version: 5.10.4991.0000 (English)
Driver Attributes: Final Retail
Date and Size: 3/20/2006 16:06:04, 1156648 bytes
Cap Flags: 0x0
Format Flags: 0x0

-----------
DirectMusic
-----------
DLS Path: C:\WINDOWS\SYSTEM32\drivers\GM.DLS
DLS Version: 1.00.0016.0002
Acceleration: n/a
Ports: Microsoft Synthesizer, Software (Not Kernel Mode), Output, DLS, Internal, Default Port
Microsoft MIDI-Mapper [Emuliert], Hardware (Not Kernel Mode), Output, No DLS, Internal
Microsoft GS Wavetable SW Synth [Emuliert], Hardware (Not Kernel Mode), Output, No DLS, Internal
Registry: OK
Test Result: All tests were successful.

-------------------
DirectInput Devices
-------------------
Device Name: Maus
Attached: 1
Controller ID: n/a
Vendor/Product ID: n/a
FF Driver: n/a

Device Name: Tastatur
Attached: 1
Controller ID: n/a
Vendor/Product ID: n/a
FF Driver: n/a

Poll w/ Interrupt: No
Registry: OK

-----------
USB Devices
-----------
+ USB-Root-Hub
| Vendor/Product ID: 0x8086, 0x2832
| Matching Device ID: usb\root_hub
| Service: usbhub
| Driver: usbhub.sys, 4/13/2008 20:45:37, 59520 bytes
| Driver: usbd.sys, 8/4/2004 15:00:00, 4736 bytes

----------------
Gameport Devices
----------------

------------
PS/2 Devices
------------
+ HID-Tastatur
| Vendor/Product ID: 0x413C, 0x2003
| Matching Device ID: hid_device_system_keyboard
| Service: kbdhid
| Driver: kbdhid.sys, 4/14/2008 03:58:37, 14720 bytes
| Driver: kbdclass.sys, 4/14/2008 03:58:36, 25216 bytes
|
+ Terminalserver-Tastaturtreiber
| Matching Device ID: root\rdp_kbd
| Upper Filters: kbdclass
| Service: TermDD
| Driver: termdd.sys, 4/14/2008 04:23:26, 40840 bytes
| Driver: kbdclass.sys, 4/14/2008 03:58:36, 25216 bytes
|
+ HID-konforme Maus
| Vendor/Product ID: 0x046D, 0xC016
| Matching Device ID: hid_device_system_mouse
| Service: mouhid
| Driver: mouclass.sys, 4/14/2008 03:49:36, 23552 bytes
| Driver: mouhid.sys, 8/18/2001 05:22:44, 12288 bytes
|
+ Terminalserver-Maustreiber
| Matching Device ID: root\rdp_mou
| Upper Filters: mouclass
| Service: TermDD
| Driver: termdd.sys, 4/14/2008 04:23:26, 40840 bytes
| Driver: mouclass.sys, 4/14/2008 03:49:36, 23552 bytes

----------------------------
DirectPlay Service Providers
----------------------------
DirectPlay8 Modem Service Provider - Registry: OK, File: dpnet.dll (5.03.2600.5512)
DirectPlay8 Serial Service Provider - Registry: OK, File: dpnet.dll (5.03.2600.5512)
DirectPlay8 IPX Service Provider - Registry: OK, File: dpnet.dll (5.03.2600.5512)
DirectPlay8 TCP/IP Service Provider - Registry: OK, File: dpnet.dll (5.03.2600.5512)
Internet TCP/IP Connection For DirectPlay - Registry: OK, File: dpwsockx.dll (5.03.2600.5512)
IPX Connection For DirectPlay - Registry: OK, File: dpwsockx.dll (5.03.2600.5512)
Modem Connection For DirectPlay - Registry: OK, File: dpmodemx.dll (5.03.2600.5512)
Serial Connection For DirectPlay - Registry: OK, File: dpmodemx.dll (5.03.2600.5512)

DirectPlay Voice Wizard Tests: Full Duplex: Not run, Half Duplex: Not run, Mic: Not run
DirectPlay Test Result: All tests were successful.
Registry: OK

i bought it few days ago and still no answer from the support. I got new drivers for my graphic card as well, but nothing helps...!

Hey can you check the Witcher site for Witcher support and mail the info to them, they are really helpful.

The machine sports almost the minimum requirements to play the game. It might be crashing because it's running out of memory. I suggest to follow up with CPDR as Anarki_Hunter suggested. On the meantime try lowering the settings to lower and most importanly just for testing set the resolution to 800x600. The sad reality is that you don't have a system designed for gaming. If you really want to game on your PC you have to build your own system. That also lowers the costs of price per performance significantly(DELL prices are ridiculous when compared to DIY prices) and assembling your own PC is as easy as Lego nowadays. The good news is that you can do so with your own PC. Try getting more RAM and a new CPU.

My main suggestion is never expect to get a system like that and get gaming out of it unless games are at least 3 years old. The Witcher 1 will run ok on that system.

Here are the game minimum sys req's:
http://gamesystemrequirements.com/games.php?id=1006

I'm amazed you actually got the game running on that horrid excuse for a PC. It's full of aged low-budget parts.

The game should be playable on that setup, but probably low settings and reduced resolution. The CPU and GPU are sub-minimum, but not by so large a margin as to make the game entirely unplayable, and the memory is the bare minimum.

Sometimes windowed mode seems to work better than full screen with low-end setups. Try going into the Options on the Launcher and setting Fullscreen to Disabled, Screen Resolution to, say, 1280x800, and the general settings to Low.

If that makes the game playable, you can work upward from there, by increasing settings to Medium or increasing the screen resolution, until you have the best appearance you can get without making the game unstable.

Since that is an old computer, it might be dusty to the point of having heat problems. Give it a good cleaning.

According to your DX Diag, your video card driver is a year old, and your sound driver is 5 years old!

Don't get drivers for these from Dell, download them from the manufacturer.