thanks troy... heres somethng I noticed. when i un-check multiprocessing in my audio sequencing program Sonar on my P4 OR turn off hyperthreading in the bios I notice 20% or more cpu being used in Sonar. so naturally i started thinking, if i use my amd comp as my audio/DAW comp, which is single processor, wouldnt i be losing then about 20% cpu power?