fidler2007
Sure it can be exactly that.

I had MAJOR crashes of Halion last week. I was ready to chew door knobs. It turned out to be video (NVIDIA) drivers. Full reinstall worked.

The way I did it. Uninstalled driver (AND deleted inf files). Rebooted, letting windows slap generic driver. Run ccleaner to get rid of residue. Reboot. Then downloaded latest video drivers and done clean install. No more Halion crashes for me.

P.S. One more thing. You probably know this, but will mention. There are couple of scenarios for admin privileges. If you are the pharaoh of your machine, make sure you have full privileges when you cast spells.

Misha.