I don't remember when this started because I originally attributed it to a failing mouse, but I just replaced the mouse and the symptoms remain. The problem is that scrolling with the wheel is causing strange behavior. This manifests when I want to scroll back/up-ward; if I scroll down a screen, the screen just does what it's supposed to. If I reverse direction, various strange things happen depending on the program I'm in. In Kmail, I just get a menu popping up as if I'd right-clicked; in Firefox, I get the menu, and then, if I keep scrolling, the page jumps to some seemingly completely unrelated web page - there doesn't seem to be any rhyme or reason to what page it jumps to - these are not pages that I've previously visited or anything like that. Anyone have an idea what could be going on? I've looked at the various preferences in KDE Control Center, which is the desktop I use, but there doesn't seem to anything amiss... I tried System Control Center, but it says system-config-mouse is not installed - I checked the repos and system-config-mouse doesn't seem to be available. This is on FC5 with all the latest patches - currently running the 2157 kernel, though behavior is the same with the 2174 kernel. -- Claude Jones Brunswick, MD, USA