Ignorant

Ooooh, Those Protools Bugs!

Just installed Pro tools 6.1 on Titanium 867 with 800 mb ram. When tryin' to enable a track for recording or playback, a pop up warns me that no volumes are designated for recording. All my attempts do designate Macintosh HD as a recording volume are failed. Yes, I have OS X, latest version; yes, I've trashed my prefs; yes I've repaired disc privileges in disk utility menu; yes I've tried with external fire-wire hard disk: same problem (won't be seen as valid volume for recording or playback); No I don't have any partition. My Titanium has double boot (Os 9.2 AND OSX).
Any ideas?

Mbox Help!!

Titanium 867 G4, 768 Ram+ Mbox. Even with the smallest session, only 1 stereo track running, no plug-ins, pro tools only runs for 5 or 6 seconds. Then sudden stop. A message warns me "Cpu is holding off USB audio. Try increasing the Buffer size...etc." Tried several buffer/CPU % settings, nothing happens. The cpu meter is always at idle level, but all of a sudden it jumps to clipping level, and this causes the stop. I noted that the cpu meter jumps to RED even with no playback at all. Please help me.