FYI: BSOD with 4.0.3810
In the previous version I had been running at:
CPUs = 4 (out of 8)
Memory = 4096
Video Memory = 256
In this configuration 4.0.3810 crashed with a BSOD every time.
I then lowered the CPUs from 4 down to 1
Set the Memory at 1024
Set Video at 128
I was then able to get Vista 64 running.
Then, one at a time, I set the Video to 256, Memory to 4096 (out of 8192) and CPUs to 1, then 2, then 4 (out of 8) and it is still running.