I booted up Poser in Safe Mode and it works. Yet, everytime I try to boot it (or any other OpenGL program) in Normal Mode I get a system freeze. What are the differences between Safe Mode and Normal Mode? Could it be that Safe Mode uses less exe files? My System: E8400 @ 3.0ghz Sony DVD-RW Western Digital 500gb HDD HIS Radeon HD3870x2 Patriot 4gb @ 800mhx 4-4-4-12 Gigabyte DS3L Rosewill 600w Raidmax Smilodon Windows Vista x64 I have Catalyst 8.8 drivers. Anything newer than that results in a system crash.