ddma -- i'll let you know, it works with the PC now, just waiting for 10.2.4 to come out then I'll test it, actually with 10.2.3 the mac recognized it by saying "Microsoft Mouse" in the device list, it just did not work. I searched the apple knowledge base to find that bluetooth does not support HID yet (a BIG yet) cause I think that is the improvement to bluetooth, as ThinkSecret mentioned, damn they were right about those imacs ;-)