Andrew, I'm having the same problem.

I have Vista (32 bit)
I updated the Nvidia Graphics card and the Dell Bios
I have SketchUp Pro 7 (student license)
I installed and uninstalled at least 7 times already. Attached are some of the errors.

And I get the "Search for A solution online" box which I always try but it never fixes it. I even downloaded a RegCure program to fix registry errors. I've spent too much time already trying to fix this. I have to get working on my model for class which is due in a few weeks. I even hired a cmoputer expert guy to try through a remote desktop connection to fix it. Another $65 down the drain.

Any help you could provide would be helpful