[Finkbug]

I'd uninstalled it by the time I posted, but it was whatever demo version was on gamershell.com March 21 2009.

My drivers are 9.2. Could'a sworn they were up-to-date. I'll fix that and dl a demo again when I've got a chance, see if the problem is still there. What's the current demo release?

If you've not been able to reproduce, I want to stress it's not flickery like a low-refresh CRT, it's like staring at a strobe light. After a minute of fighting through settings (tried resolution and v-sync; didn't try play windowed) to see if I could fix it I had a blinding headache and was worried about my monitor. It's completely unplayable.

PS. Hope sales are going well. Big fan of you guys!

[edit] On that first attempt turning on vsync changed the problem to a rapidly rolling bar, similar to (but worse than) pointing an analog video camera at a CRT with both on different power feeds so the sync is mismatched.