And I just tried running this:

cgminer --scrypt -o http://mining-foreman.org:10341 -u Draxus.1 -p x --shaders 1792 --intensity 14 --worksize 256 -g 1

and I got about 4 seconds on hasing before my computer rebooted....


Also if I mine bitcoins I get about 430mhash/sec using guiminer and that is stable will run for days without crashing