While trying to slice this http://www.thingiverse.com/download:1470188 (after correcting the scale etc.), S3D resp. NVidia brought the attempt to a grinding halt. See screenshot. I contacted the S3D support already. Did others here see the same error already? I also tried to reduce the triangle count (using that wonderful netfabb software), no avail. Of course, my drivers and the whole system (i7, 12 GB RAM etc.) are on the latest update state. Time to fire up slic3r again.