I've only been on OS X for 2 days! So I am pretty new.
Basically when I plugged in my Targus USB mouse it popped up that I was replacing the keyboard, it said if I wasn't then just to ignore the message and carry on, so I crossed it but my mouse isn't been detected by my Macbook Pro.
The red light on my mouse is on so it has power but I can't see anywhere where I can set it up, all I'm thinking is that I need a Mac specific mouse? I got this mouse with my Vista laptop but I assumed it would plug in and work on OS X?