I just purchased TW2 this morning and downloaded the game via the GOG downloader. When I start the installation, the progress bar gets to about 25% and then I get the message "Setup needs the next part".

I looked in my GOG folder and I think I see what caused the problem... The file setup_the_witcher_2-3.bin is in chunks rather than being all one file like the other bin files.

Is there any way to fix this? Do I need to re-download everything? If so, should I not the use the GOG downloader?

Edit: Nevermind I realized I could just download the bin file I needed.

Now I have a new problem. The 2.0 update basically killed my installation and now I have to reinstall the game.