Pro Tools crash on open...

[coboune]

Hello!

I work with Win 7 and 9 with Pro Tools 8 Komplete, among others.
Lately, I have crashes on opening Pro Tools (access violation 0x00000000 then 0x0000003c) when loading plugs with often stop on Kontakt5.dpm. I also have this problem in the middle of sessions with the message "Access Violation Occurred while translating tracks".
I have a cleaning files procedure (*.bat) for Pro Tools (DAE, etc. ..) in order to start every morning on a clean application but it does not change!

So I decided to start from zero with a clean install.

I install Windows 7 again, my "Allen & Heath ZED R16", Pro Tools 9, Komplete 8 with updates. After more than four hours of installation, I decided to test Pro Tools before installing any new plug-ins: crash on the first launch! as usual...

Finally, I have downgrade Kontakt to the 5.0.0 (.5133) install disk version and it seems to work BUT I'm still re-installing my system, not really working...


Any idea??
I take all

Thanks in advance...
Coco

PS: I have to say that I posted the same thing on Native Instruments support...