Photoshop CS 5 3D rotate opengl error

Had an error with a machine a student was using. The error happened when trying to 3D rotate the document. It read:

Could not complete your request because it only works with OpenGL enabled document windows.

Whilst being slightly helpful as to hinting at the problem, I do wish it would try and solve the problem itself. After doing a quick search on the internet I found a nice little Adobe Forum quickly explaining that you need to have an OpenGL compliant graphics card. This didn't help either because just about everyone does!!

So I found another forum saying that OpenGL has to be enabled in Photoshop, and as a default on Windows XP it is switched off (bad move).

I eventually worked out where the tick box was (which wasn't explained in the forum!!!)

1. Go to Edit > Preferences > Performance...
2. Click on Enable OpenGL Drawing.

Of course now I find out that another machine doesn't have a graphics card (it's onboard). Doh!