Can you guys confirm the version of mplayer you are using? I can't get it to play smoothly regardless of what codec/bitrate/resolution I use. The built-in Nokia Media Player seems to work *FAR* better for me (mpeg4). See my thread here:

http://www.internettablettalk.com/fo...ad.php?t=27213

Ignore the stuff about UPnP streaming -- the results are the same even if the file is played off the tablet directly.