This is it!!! I've seen plenty of people having this same problem with the game, and I was about to deicde never to play it again, I was so frustrated.For anyone having this problem under Windows x64, this will fix it! Just download any savegame file (the link here is dead, but I found one somewhere else), copy it to the directory above, and the game will recognize it. Then you can just hit 'clear save data' in the options menu from the title screen, and bam. You can finally reboot your game without losing all your data.Thank you so much for figuring this out! Now I can actually play the game.