This is going to sound pretty vague but I don't have all the information myself, just yet, but I'll do my best to find out if you have any specific diagnosis tips.
I'm working on one of 12 other websites (all hosted in the same repository under the same Sitefinity project). When I checkout the code from the repo and build, it loads up the "system is restarting..." page. It refreshes every ~2 seconds (or so), but never restarts. Restarting the IIS server and recycling the app pool did not seem to have any affect. I also checked Event Viewer for good measure but nothing there indicated a problem with IIS at all.
How would I go about diagnosing this problem?