I noticed a weird issue with my blue tooth mighty mouse and my 13in mac book pro..basically when my wireless connection ramps up like when i am downloading a file my mighty mouse starts to lag bad and becomes very unresponsive..i notices this only happens when my macbook is in clamshell mode with a external monitor if i open up the lid the mighty moouse works fine again...my guess its a issue with my wireless router using a 2.4ghz connection but i could be wrong what do you guys think?