I am running Fedora Core 9. Using version 1.03, I need to be root to run dispcal. As myself, I get dispcal: Error - Configuring USB port 'usb:/bus0/dev0 (GretagMacbeth i1 Display)' to 1 failed with -1 (could not set config 1: Operation not permitted) But under version 0.8, I can run dispcal as myself. I'm sure I can eventually figure this out, bu t if someone can save me some time by suggesting where the problem may lie, I would appreciate it. It may have something to do with the way that Fedora gives permission to use usb ports to whoever is logged in at the console. But it also seems to have something to do with dispcal. -- Leonard Evens <len@xxxxxxxxxxxxxxxxxxxxx> Mathematics Department, Northwestern University