I'm using an A4 Tech PS/2 (3D mini Mouse w/ scroll) that has an extra adapter that lets' you convert your ps/2 into a com connector, the last time I encounter the PS/2 problem is when I tried RH 7.2, it did not detect my PS/2 mouse, and I cannot use my mouse wheel under web browser (which is I don't like), my current distribution is MDK 8.2, and it detects my mouse as "Microsoft Intellimouse", which is cool!