I needed to get Photoshop CS5 running on my backup system and Photoshop was not too happy. I updated all drivers and it would crash whenever I opened any file. The Event Viewer said it was ID 1000. After some searching on Google I got no fixes. I finally just poked around the PS preferences and found a toggle to disable Open GL Drawing under the performance menu. Presto, once I unchecked that box Photoshop works perfectly.