First, I want to state a few events that have occured prior to me wanting to ask this question. I run Arcserver 11.1 on a Optiplex GS620 (using Windows Server 2003). About two days ago, I tried to start a backup and when I clicked on "Device" from the QuickStart menu...Arcserver would just hang...and I would have to stop the application, and try again. So I did, and again, it hanged...same result. This time I rebooted the machine, and tried again, and same results. I ended up finding out that once I deinstalled the D2D2T module, I could click on "Device", and see the tape with no problem. But now, if I click on "Backup" from the QuickStart menu....Arcserve hangs again. Can anyone please help !