Giana Wrote:
"ok, well, i do in fact have nVidia, however it is an older system.  so i guess my question would be this:

if you can render using GPU, can you not also render using CPU... i mean isn't CPU simply a default kind of thing?  i don't mean necessarily the mixing/potential overflow type thing, I just mean doesn't one always have the CPU option?"

Yup, and this is exactly why SM avoiding GPU rendering is a bad idea for those of us who can use it, and to be fair, my own system is old yet even I get blazing performance from it, so it's always better to have the option than not.  Please don't listen to what Glitterati said, I didn't post anything to mislead you, in fact I just spotted Zev's comment too, he knows what I mean, what I'm getting at, so please listen to him instead of Glitterati :-D

My system is old and modest, and I still get blazing performance thanks to GPU rendering.