Windows XP q(uestion) ? ok, here's the thing (for the pc savvy folks) the company that rents space from us and i do their pc's/network/web site.. anyway, they have 5 pc's and 2 Windows CD's (XP Pro) there might be other cd's somewhere in the warehouse (they moved to our building about 18 months ago. still not everything is unpacked) i figured i would check the product key with what you can see in System > General.. checked and i don't think those 2 are necessarily the same. is there any other way to verify which cd goes with which Windows ? thanks..