K800 video forward problem

hi i have K800_R8BF003_MAIN_GENERIC_WI_RED53 CID53 phone
and problem is fast forward or jump time.
i dont talk about built in player. this one forwards ok but doesnt show progress of forward.
i have videomaniac and m:video in java that shows srt subs on movie.
movies are in mp4 format 150-200mb
problem is forward in both those java players beyond 20 minutes.
if i jump time to 0:23:50 movie is ok, but 0:24:00 and movie is 1:00:00 0:25:00 is 1:01:00
on google i found same problem is with new flash for k810.

SE-NSE Forums Problem With K810i Fast Forward
"HI to anyone that could help with me with this. This is the first time I've registered to a forum, I'm having a hard time trying to search cause maybe my prob is a bit specific, well most things are in here, just cant seem to find my concern. I just bought my K810i last week and I just read that theres a bug in K810i with the video "R8BA024 have bug with forwarding of video more 20 mins." "

is there any solution? to fix it.
thx