Hello,
I've got a Mac Intel core duo 2 ghz, OS X 10.5.8.
I've got a PC Intel core duo 2 ghz with Vista.
I've got Carrara 7 pro running both on the Mac and the PC.
When rendering with the Mac, I've got 2 tiles - a yellow one and a pink one.
When rendering with the PC, I've got only one yellow tile and of course a slow rendering.
Any idea about what's wrong with my configuration on the PC?
Thank you,

 
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Holyforest,
Hundreds of shaders for Carrara