Ok, I tried some stuff, like upgrading the nvidia drivers, and changing different display options, but I couldn't get it to work again. So I'm giving up on it, as I have no clue what to try next. Although I think its a cool feature, for me its not a huge deal, as I'm still able to flip through the galleries manually. So I wouldn't mind if it took a while for Tom to fix, if it is a general problem. Heck, I know from myself that bugfixing can be tedious, so by all means, I think he should focus on the fun stuff, like adding cool new features. I'm just impressed by all the hard work Tom has put into this project.