Strange problem

[MONOLITH]

Originally Posted by MONOLITH

Then turn everything to minimum, and see if it still happens.

I just want to confirm that you tried this.

It's the simplest check to do, and won't require getting down on the floor messing with stuff.

If SH4 does not crash (green screen) with the graphics settings turned down to minimum (in the game options, AND in your driver control panel on your PC), then the problem is an overdriven/overheated card.

PS: I just noticed it's a 8800 ultra. SH4 shouldn't be a problem for it, imo. And if it's only with SH4, perhaps there's an issue with a particular graphics file that is corrupted. Is there any particular event or screen that occurs before it crashes to green? Try to run the vanilla game with no mods, and if needed, a fresh install as well.