Entourage 2004 Crashes on Right-Click

So the title basically says it all. Entourage 2004 crashes on me when I try to right-click anywhere.

If I crash it a couple times so that my option in the crash box is "Try Again" instead of "Reopen" then it works. But when I close neither option (new settings or original settings) actually fixes the problem.

Any ideas would be greatly appreciated.

Thanks!