ASUS/P4B533 Mobo, P4/2.4, 512M, 450 gig RAID/0 and 80 Gig Boot drive, Audigy/2, Win XP Corp SP1 ONLY ATI 8500/128 Meg, MMC 7.7 and original ATI CD Drivers.

I have the room to record un-compressed avi and it's been beautiful for months, I recorded an MPEG-2 via MMC and noticed jerky playback, as I look around my avi's also played back jerky - not every x seconds - random.

Full re-install - same scenario.

BUT... if I copy the file to any of 4 other machines, including my dandy little Celeron/600 Dell notebook, the playback is flawless.

I'm killing myself over this, the odd thing is that if I use the time-shift and pause it for 10-15 minutes then come back and continue the playback is smooth as silk.

I'm sure it's a codec problem and Gspot reports an "unspecified vfw codec" on the machine that can't playback smoothly for the avi's and on mpeg's it's "VOB MPEG-2 decoder".

I'm lost (as usual) - any ideas out there?