During playback of a DivX/Xvid (AC3 or DTS) movie, every few minutes (in the EXACT same spots each time), the audio "clips" (or pops, skips a beat or something like that).
4/22/08 -
Always, if you pause, FF/REW or # jump the movie. Not near as often if you just play from beginning to end. 
PC playback does not have this problem.
Operating environment:
Wired 10/100
Any media server (D-Link, Twonky and TVersity)
DivX and XviD with AC3 or DTS
AutoGK stable or beta
My server is a dedicated 3.2Ghz P4 with 2gb running on Windows XP Pro SP2. It's connected to a DLINK 10/100/1000 switch along with the DSM-520 (both directly on my DGL-4300 router and same problem). I also serve from my Vista 64 system and ALL videos do the same exact things in the same exact spots.
Here is the annoying part. If I copy one of the AVI's to a USB 2.0 memory stick they play fine from USB Direct.
(4/22/08 - only if you don't pause, FF/REW or # jump the movie) 
I am at a loss.