Hi, I'm having the same problems as you laterusman. If you fix it, please post here again!

I'm using iDeneb 1.4 with this setup:

asus m2npv-vm, athlon 64 x2 4000+, sata hd, with an asus 8800GT (g92) attached.

Using voodoo kernel, removed the appleuserupstream kext (or whatever its called) installed using nvinstaller, (no nvinject), using fsb=200000000, and have tried cpus=1 to no avail. The problem even occurs when i boot in safe mode

the thing is that it starts working for a bit then gets the jumpiness. I wonder if theres a process run by launchd causing it?