[split] Freeze on PPC in Mac OS X 10.5.8

[Urkle]

What this issue seems to be is a driver issue. We are doing a lot of Occlusion queries in the game renderer. the few times I've been able to recreate it was "stuck" in the occlusion loop waiting for the ATI driver to return the results. We put in safeguards around that to verify the query before using it and in my last set of heavy testing I could not recreate the issue.

It seems I have to go and pester Apple to see if this can be resolved. Though at this point it does not seem like they are wanting to support any older hardware.. Even my 2006 Intel Mac Pro is receiving no graphics updates for several KNOWN graphics issues that have been reported to them.