I have a Compaq A1500 and i upgraded my system to Windows XP Pro.I did not upgrade my driver for the printer before the system upgrade till afterwards. Now I am having problems with the printer.Sometimes I will get an error saying that the port is busy or the printer is busy when it really isn't even being used. Sometimes it won't even do anything but I sisconnect the printer from the outlet and it will start printing.What can i do about this? Any tips?