I'm no expert in this, but I haven't had any issues reported from people using 334 or 335 - so go with one of those.Guys,
Which is the best Nvidia driver for 1.5? Face-Off suggested 227 a while ago when I was using 332 and had some problems with the Revit plugin. 332 Apparently caused some issues with then release candidate 1.27.
Your 1.5 help file suggests merely an "Nvidia driver supporting CUDA 5.5" (http://render.otoy.com/manuals/Standalo ... page_id=26)
Are there no stability issues any longer with the latest Nvidia driver releases?
Cheers,
Seeker
Paul