Windows 7: Random BSOD - Stop 0x000000F4 ntoskrnl.exe

Hello,

I found some good tipps here on the forum, but I couldn't find a solution. I have random BSOD since 2 Month. Sometimes with minidumps, sometimes without. I run a dualboot system with Windows 7 64bit and XP 32bit.
The crashes appear most of the time on Windows 7 and really rarley in XP,altough I'm using XP more often and longer. I checked my HDDs with Samsung HUTIL and my Memory with memtest. Prime Stresser. No result.

I thought it was the ssd who cause the bsod, but its only 6 month old and only got 500hours of work. I asked for help in the crucial forum. I got only one response, that it maybe the graphic card driver. In the windows service log. There is an error entry about an "peernetzwerk gruppenzuordnung (i run a german version)" peernetwork group assignment, before the BSOD appears, but not always

I have the last minidump, crystalinfo and the ntbtlog.txt attached. The minidump and the ntbtlog.txt are in the zip file.



My System:

Intel Q660
MSI Neo2-Fr
Corsair Dominator DDR2 8GB running @800Mhz
SSD Crucial M4 128GB Firmware 000F
HDD Samsung Spinpoint HD701
DVD Burner
nVidea Geforce 7300GS
RME Hdsp 9632
UAD 1 DSP Card
USB Devices

No one can help?