I just installed my MXO2 Mini on a fresh install of CS4/Vista Ult 64. I am getting worse performance with cineform converted 7D files than I did on CS3 with the .MOV files the 7D spit out. Clips play at about 10FPS and often playback just stops. I was wondering if it's my machine specs or if there's truly a problem.

Asus P5W 64 WS Pro
Core2 Quad q6700
4GB RAM
3x500gb RAID 0 array.