If I log into my user account, then go away for a few minutes, I will come back to find my session has gone and the login screen is staring at me, expecting me to supply my username and password. If I were in the middle of editing an unsaved document and my session ended abruptly like this, I'd be in trouble. I found these messages upon checking the log: Oct 10 17:36:22 bobcp4 gdm[987]: gdm_slave_xioerror_handler: Fatal X error - Restarting :0 Oct 10 17:38:12 bobcp4 gconfd (bcochran-1200): GConf server is not in use, shutting down. Oct 10 17:38:12 bobcp4 gconfd (bcochran-1200): Exiting Anyone else getting these having this problem? I'm using an ATI Radeon 9000 card with a small color monitor, the generic variety sold by eMachines. The keyboard is an eMachines keyboard also. The mouse is an old Microsoft 3 button mouse. I'm still working on the box itself, which I built from parts. When I'm done transferring more cards (like the Adaptec SCSI card) and testing them, I'll connect the box to my much bigger 19" Dell monitor. Thanks Bob Cochran Greenbelt, Maryland, USA