All my 3gp Video made with the MMC 2.0 play flawless on the Nokia Multimedia Player and on the 6230 phone. But none of the videos can be positioned with the scroll-bar of the Multimedia Player nor can it be fast forwarded on the phone. Other videos (not made by me) can do that fine...

Is this a bug in the MMC? BTW: The checkbox of the intra period is on and the period is at 15 sek.