I have 5 (+1 laptop) Win 7 machines, rendering thousands of animation frames and being abused on a regular basis by a variety of software, including After Effects, Softimage and Vegas video, plus a few games. I've been running some new CUDA vid card renderers also and I rarely have a problem --- and if I do, I'd be more likely to blame it on the individual softwares.
It's been a terrific product so far.
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