When I save my game, I cannot overwrite previous saves. It gives me the warning about overwriting saved games, and I click OK and give it a name, but when I go back to the loading screen, the previous save has not been overwritten and my progress has been lost. This applies to normal save slots and the autosave.

Another 2 years later, heh

Dunno if it actually changed anything, but when I turned off file compression under advanced attributes I was actually able to overwrite saves properly. It didn't even matter if antivirus was on or if it was running as admin or not. The game is also installed in the default gog galaxy folder. Mind you I tested that with Windows 7 64bit so I don't know if that solution would work onmore modern OS