i read of another person that had an identical problem: was able to run games on the second run but before had white screens..( also the TWLmenu itself had a white screen the first time i launched it ). It seems that everything new i launch within TWLmenu needs to be launched two times to get it work, with a force shutdown after the white screen. Now i am able to play super mario and art academy on the first try.. so i really don't understand what is this. To me this looks like a bug.I have no idea what happened then.