Hey, So I have a kensington Expert Mouse that works just perfectly on XF3.3.6 on my intel-potato box (gives me three buttons). However on my pismo I only get two buttons. On XF3.3.6 I use the ThinkingMouse protocol. If I try that under XF4.0.2 it doesn't work at all. To get it to work I need to use the IMPS/2 protocol??? Help is greatly appreciated... jas.