MDD Won't boot unless CD tray is out

I've got a strange problem I've never seen before. I've got a dual gig MDD with combo drive that won't boot correctly unless the CD tray is out/ejected. If the tray is empty and closed, the system won't boot. If it's open, it does. Simple as that.
Can anyone point me to the solution? I don't know if I need a firmware update or what. I'm running 10.3.9. Norton's Systemworks 3.0 was run on it recently. I know that's a really bad idea, but I didn't do it. Just thinking it might be once cause of the problem.
Any help is appreciated.

OK, the Norton "thang" has been beaten to death...
I would not trust the uninstaller. Many uninstallers fail to remove EVERYTHING. Whenever I run an uninstaller, I perform a manual search for any remaining software "parts." Search for anything with "Norton," "Symantec," and "Works" in its name, and, if it is in any /library or /System/Library folder, (of the /Users/Home counterparts), and if its name remotely suggests a connection to the old System Works software, move it to your desktop (so you can put it back, if necessary). Then test for the malfunction.
Still, your drive drawer issue sure seems to suggest a hardware problem, such as a short, or something (I'm hardly an electrician.:)
If you're feeling brave, why not remove the Combo Drive. If the problem goes away, you can just replace that drive (with an upgrade?).

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