Pro Tools Crashing bad (-6806)

[Siddhant Bhatia]

MacPro 8 Core 2.26
Pro Tools LE 8.0.4
6 GB RAM
Normal Session with basic Virtual Instruments & 16-20 tracks

Pro Tools has been crashing a lot for over 3 weeks. After a H/W Buffer size error, rather than it resetting and stopping playback, it crashes completely with the Mac Rainbow Ball. This does not go away till we manually force quit.

A stutter sound comes, everything stops and then we realize this has already crashed. Playback buffer is usually around 256 during record and while recording with no more than a simple reverb plugin, pro tools has crashed atleast 20 times in the last few days ...

Any solutions pls? This is really annoying. It takes 5 minutes to load everything from startup in the middle of the session.

Thanks!

[Ben Jenssen]

Have you done any standard troubleshooting?
Troubleshooting tips.
Have you installed anything new lately?
Anything changed hardwarewise?