As its been said before my moneys on the gfx (or lack of it) in the mac mini.

Having a dedicated GFX card with maya is a must, a low end GFX card runs rings round an intergrated card so thats probably the problem.

In a Mac Mini I doubt that you could add a GFX card to. You...

What GFX cards in the PC that you used?

What could be happening is that the polys are being put into the RAM of the GFX card, with the intergrated card only having 64MB this can fill up pretty...

The tumbeling issue to me does sound like a gfx card problem, but as for accessing RAM, not too sure with the macs and how they address and how much they can allocate but maya is only 32bit on the...