wel i have the mighty mouse (wired) which came with my imac.
it is scrolling like 10 lines at a time and an example of this is on the mac-forums home page it takes a few clicks (of the wheel) to get it to the bottom it is just too fast
I wonder if the keyboard/mouse preference pane got messed up? Was looking for a .plist for it but all I can find so far is the keyboard preference pane. When I click on that in the Library it brings up your mouse settings.
Since you did say it messes up with other mice, it can not be the Mighty Mouse.
Not many, have you tried unplugging it and other usb devices and reconnecting? Also, have you added any new hardware to your setup recently? Or made any changes at all?
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