I'm planning on buying a MSoft 'Standard Wireless Optical Mouse or a Kensington 'Optical wireless mouse' for my G4 laptop. Does anyone have any experience in programming the buttons on either of these. ,What I want to do is use the Right button for the normal clicking button and the Left button for a 'back' button --- that is, to go back to the previous page. (and of course being able to change the scroll rate with the wheel.) I'd appreciate any comments. thanks