I have similar problems. The alien campaign drops the framerate terribly and the cutscenes have no sound. Marine and preditor are smooth though. I'm running it on xp (high settings).
ye with me to the alien cut scenes have no sound, but in the predator campaign i all so have this issue it's like performance lag it like stop's for a few second's and the sound loop it mostly happens with the pred after loading screne and it happens a while after that mostly when i look around ow and i have XP so i don't think the game can run on dx10 and i have tryed to lower graphics and it's still the same, and crysis even thouth 2 year's old it still has the best video game graphics ever, but avp still has pretty good one's.
[Edited by N1gHtM4R3, 2/18/2010 12:43:12 AM]
has anybody found the place where savegames and options are stored? maybe there's room for some manual tweaking like reducing that aweful motion blur.
C:\Users\username\AppData\Local\AliensVsPredator\largenumberhere\Checkpoints