If anyone has a Kensington Turbomouse v.4.0 or v.5.0 that doesn't work well with their //gsI'd be quite willing to trade a used Turbomouse v.3.0 that purportedly WILL work well with a //gs but isn't liked by newer Macs so much. Depending on the age/condition of the trade I might make a cash adjustment to balance the trade. John Daniels ah499@cleveland.freenet.edu