First time this has ever happened. I will open a particular session and start playing. It plays for 4-5 seconds, then the screen freezes. I can't escape, or do anything. I have to manual shutdown the computer. But.........the session keeps playing the audio, in a short 1-2 second loop. It just keeps playing the loop until I kill the computer. I've gone through shutdown-and-startup several times, but the problem reoccurs each time I open this session and start playing. If I play outside the regions, so no data are being processed, I don't have the problem. So it appears it suddenly can't handle processing all the track audio data on playback for some reason. I have worked in this session several times before, no problem. I have an HD2 system, plenty of horsepower for the number of tracks. The only thing I did differently before this occurred was to open and work in a session on an external firewire drive for a day. I've never worked in a session on a firewire drive before. It seemed to work OK, except that I couldn't record into the session. Each time I tried, I got the message that "the drive is too slow or fragmented". I never solved that problem, so I could use help on that one, too! I don't know if the two events are related or not, but it is sure a big coincidence. In any case, does anybody have a suggestion as to what my problem is in this session? Thanks! Mike

Re: Computer freezes, starts playing a loop. What. 

Nobody has had this problem????! Help!!

Re: Computer freezes, starts playing a loop. What. 

I think this is usually drive or ram related. Try your session on a different drive first.

Re: Computer freezes, starts playing a loop. What. 

I just opened and played another session. It played fine, no problem. I went to the session folder and did a "Get Info" on it: 11GB of data. Then I went back to the problem session and tried playing it. Same thing: it is sluggish when I move the cursor around, and it froze up after a few seconds of starting to play (happily playing a loop over and over). I then went to the session folder for this session: 3GB. So it has much less data than the session that played fine. Both session folders are on the same internal hard drive. So, it appears to be something in the session itself that is bogging down the system, not a disk or general Pro Tools setup setting issue. The only thing I see unique about this session is that I have a relatively large number of MIDI tracks. But these should have really no impact (I think). What setting could be causing this WITHIN this particular session? Mike

Re: Computer freezes, starts playing a loop. What. 

Re: Computer freezes, starts playing a loop. What. 

So how do you solve the problem and get that particular session going again?