I downloaded app world and everything was fine. My app world disappeared I downloaded app world again yesterday and everything seemed fine and today it was gone....again. any help to fix this issue. thanks
Did you look in all the folders to be sure it hasn't been moved to one of the folders? If you've confirmed that it is installed in the app list, done show all and it still doesn't show. That's the only thing that I can think of that it might be. It could be any folder but I'd start with downloads and applications folders and if not found there, check any others you have.
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Personal: iPhone on AT&T
Work: BB 9650 on Sprint