every time i try to watch a video an error comes up ' this file not found' 'movie format not support' and some other errors. sometimes all the error appear when opening the same video. although i can watch the same video on my mac and on my brother htc desire hd phone without any problem. can i fix this or is there an alternative for youtube app ? i have 4.1 jailbroken. i tried the youtube site on safari too.