Suse 9.1 - CD drive pops open after logging into KDE...

Greetings! When I logged into the KDE desktop (Suse 9.1) on my file server, my cdrom drive pops open. If I close it, it'll pop back open. It's an old Mitsumi 24x cdrom drive. I have never use the cdrom drive under KDE and never had this problem before. Software or hardware problem? Thanks! Christopher