Pro tools 7.1cs9 crash when doing midi edits

[Shah Tahir]

Hi all

I've installed 7.1.cs9 on a Hp xw9300/AMD Opteron/2G mem on a HD3 Pci system and found that it crashes randomly when doing midi edits like cut and paste....lengthening midi notes....even quantising a selected track.It's random.......sometimes nothing goes wrong for hours.....then suddenly crashes.
Some of the crashes happen when i do block edits across a few tracks to cut and paste to another bar line...
I'm running a few virtual synths......Reason/Ivory/Stylus RMX/Atmosphere/Trilogy.
Any help would be greatly appreciated.

shah.

[Stig Eliassen]

I had similar problems just a few days ago. PT crashed immediately when I tried to select an alternate playlist on an instrument track. It turned out to be a corrupt session file (*.ptf). Try to import all tracks into a new session.

Go through the Setup and troubleshooting sticky here at the DUC if importing doesn't help.