1st Question:
I'm having some problems getting var to work with my system. Basically I am switching my memory to be allocated by the wglAllocateMemoryNV function, then I am calling glVertexArrayRangeNV then glEnableClientState(GL_VERTEX_ARRAY_RANGE_NV);, afterword everything is left as normal. But alas all the vertices are jumbled. What kind of VAR mistake could cause this?

2nd Question:
What chipsets can write combine to multiple arrays?(I read previously P3's but do athalons as well?)
As well can you obtain writecombing with a loop such that
for all verticies
{
perform an action
write result to VAR array
}
Is there a good document on the web about the best techniques to do write combining?