I am having a similar problem with Retrospect not responding when I click on Configure and then click on Devices. It opens the Devices window and then just hangs and then eventually in Force Quit, it says Retrospect not responding. Sometimes it REBOOTS the server. This is on a new xServe running 10.5.3. I can't find the uninstaller program in the Retrospect client I downloaded. Help! When I try to run a script, it sees the tapes in the library, but says 'content unrecognized' for the tape in the drive. I'm hoping an uninstall and reinstall will correct this. Have been Retrospect on our other Mac Server for several years without any problems.