I used this theme for about a day then it started crashin my game and it was my favorite theme anything i could do to make it work

Well when i start up my FoFix, I run as admin, I have Vista so its recommended to run some games as admin, if they have mods. So my FoFix is open, I have the Lego Rock Band theme on. And I go to the quickplay setlist and select a song. the loading screens are fine then when its done loading. the gam...