video stops after a few seconds.

[Kevin Verbeke]

hi all.

i have a problem with my PI,
when i want to play a 1080p video after a few seconds i have no sound and no video.
and my tv sometimes says: video format unsupported
but when i stop the video and get back to the menu, the video (menu) comes back.
vlc says the codec is: Codec: H264 - MPEG-4 AVC (part 10) (avc1)
i thougt i didn't need the mpeg licence for this.

any idea's?

running xbian 1.0 b2