I beat my brains on on this yesterday. I am going to start a new thread to see if anybody has a clue. Got some interesting stuff.
My fix was that I have to run with APIC. If I turn it off, my lockups return.
If you like, check out my new thread. I think I will put something like "$20 will be sent to whoever gives me the fix to my problem." and I will definately send $20 too!