Diamond Backgroundchanger Not Working
 

I've heard this program works on the touch pro but I'm having issues getting it to work(i'm using JDs 7.1 rom). After I set the directory and click "change now", it just stays on the default screensaver and doesn't pick up any of the pictures in the folder nor does it rotate through them. My directory for the wallpapers is a folder called "pictures" in the storage card so I set the directory as "Storage Card\Pictures" in the program. The pictures are in jpeg format and are about 3 mb each. Does the format or size matter? Would really like to get this working, so any help would greatly be appreciated!