I've experienced the same problem.

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LCDebug.Error at Fri Nov 03 13:09:42.959 2006

Bad Version : instead of AgentClassesV1.0 16-03-2004

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LCDebug.Error at Fri Nov 03 13:14:27.615 2006

Bad Version : instead of AgentClassesV1.0 16-03-2004

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LCDebug.Error at Fri Nov 03 13:19:48.427 2006

Bad Version : instead of AgentClassesV1.0 16-03-2004

This is my error Log, I've tried running it before patch, and after patch,

Directx 9 Is installed and running fine. I've never had graphical problems with games.
So I don't suspect its a Directx problem or anything.
I've tried 3 clean instalations, And trying it before and after the patch, But I get the same results. If you need any computer information I can help you.