i messed with my calculator app using WinSCP trying to change its theme. the thing i downloaded had 97 files and said to put them into the calculator app folder, in the description it also said to backup the original calculator theme in case i wanted to change back, so i did, btw there was 108 files when i backed them up. after that i deleted the 108 files, added the new 97 files. i looked at my ipod and it seemed fine, so i clicked the calculator app while WinSCP was still up and my calculator was green but then it closed really fast, i tried it again and same thing happened. i turned WinScp off and tried it and same thing happened. so i put my back up files back onto my calculator app and then tried it and it opened, it looked normal but then closed right away again. I EVEN REBOOTED my ipod touch, but it still closed right away. how can i fix my calculator app?