Audio - Video sync issue

i have BB 8520.
while playing the video files, the audio & video is always out of sync as the video progresses. i tried mp4 & 3gp format but result stil d same...

ne help??

i went to few threads on the same but with not much help.

i found this thread but for the last comment, i cudnt find the said thread.

http://forums.crackberry.com/showthread.php?t=374410

thanks in advance

Haven't heard of this problem before. Try a battery pull, it might fix it. If the problem still occurs, update your OS.

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