> This what I already saw on the internet. I wasn't entirely sure what you meant and I haven't hacked a PS/2 mouse yet. If you know what the data stream is you should have no trouble detecting the button bit, as any old computer slower than a PIC can do -- http://www.piclist.com hint: PICList Posts must start with ONE topic: [PIC]:,[SX]:,[AVR]: ->uP ONLY! [EE]:,[OT]: ->Other [BUY]:,[AD]: ->Ads