andrewmowder on "Multisite, posts on 1 site throwing a 500 error."

I have a multisite install with around 30 sites on it. One of the sites is throwing a 500 Internal Server error. The homepage for that site comes up just fine - it's just when the user clicks on a post that it errors.

All of the other sites within the multisite install appear to be working okay - EXCEPT for when I attempt to access the Media library or upload a new file (also receieving a 500 error). This seems to be happening on all of the sites.

I'm running WordPress 3.1.3 on a Windows Server.

Any ideas or suggestions?

Thank you in advance.