My computer may be too slow for this program my cursor constantly blinks and the software response while navigating seems to be extremely slow. The interface refreshes constantly. The Open GL seems fine though. I did both tutorials and manipulating the model (both sphere and face in tutorial 2) was responsive enough to work while moving vertices and painting. My main problem is while navigating and selecting commands the whole interface refreshes twice and the cursor keeps blinking for awhile until the menu finally updates. My system: Dell Workstation Precision 410 Dual PII 400MHZ 384 MB of RAM Windows 2000 Elsa Synergy I 8MB of RAM (Permedia 2)