So finally to end this thread. There where two problems.
1. Games crashed because of a faulty graphicscard (solved and reported earlier in this thread)
2. Bluescreen with Bootcamp 3.0 and 3.1 did not work because of a harddrive related driver problem. (SOLVED NOW)
And here is how :
I have my OSX installed on three 1TB Caviar Black harddrives in Software RAID 0 . My Windows partition is installed on a separate stock 640GB drive.
So I figured out I had to REMOVE ALL OSX drives for solving the problem.(getting windows 7 64bit with bottcamp 3.0 / 3.1 working without bluescreen). It doesn't matter in which slot I place my Windows Partition harddrive.
Bluescreen error stop code I received by CACHE_MANAGER
STOP: 0x00000034
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Of course you don't want to remove your OSX drives all the time using Bootcamp ;-)
THIS SOLVED THE PROBLEM :
Navigate to c:/windows/systems32/drivers/AppleMNT.sys, rename the AppleMNT.sys file to something like AppleMNT_keep.sys or something of your likings.
The faulty HFS driver is a valid concern.
It seems to happen on many systems.
You find it in Windows/system32/drivers/*AppleHFS.sys*
Renaming to AppleHFS_disabled.sys will avoid the blue screens
-> reboot and it should work !
More information here:
http://discussions.apple.com/thread.jspa?threadID=2158281&tstart=0
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So if you disable these two files, your external harddrives won't be mountable anymore otherwise in WIN OS.
My 09 Mac Pro works fine with Bootcamp 2.0 and 2.1 drivers.
With the 3.0 and 3.1 drivers I have to disable these two files above.
I hope this will clear out things for some other Mac Pro users.
