I recently obtained an older Mini and installed Lion onto it. So far I like it a lot. However the OS thinks that I have a trackpad and will not let me disable gestures. The scroll wheel on my mouse is backwards and driving me crazy. There must be 100+ posts on the net saying to open the trackpad control panel and then . . . to disable gestures. I cannot do that because the system is looking for a trackpad. I had to disable bluetooth in order to access my trackpad control panel, and so I cannot set any parameters. Is there a preference file that I can edit to set the "disable gestures when a mouse is present" ? Thanks!