New pro/con: Typical microsoft intall crap. Connected the AUS$100 keyboard to my old 550MHz homebuilt pc running Windoze 2000. Didn't seem to mind that machine. I moved it to the machine I wanted it on, a XP based 3GHz Duo and WHAT A DUD. keys appear swapped with neigbors (a<>b, c<>d etc) Typing this on my old wired keyboard (that cost me AUS$15). Of course went to MS Help (so-called) site. No helo to be found short of paying most of the purchase price to sort something that should work out of box.
