I have an HP4200 series all in one at home and the same printer at work. I
use a laptop with Vista Home Premium 32 bit. Most of the time my computer
tries to reinstall the printer when I move from one printer to the other, or
if I disconnect from one of the printers and then reconnect, it does the same
thing- tries to
reinstall. Sometimes I end up with 3 or more copies of the same printer being
installed.

I've deleted the printers and the printer files and downloaded the latest
drivers. That seemed to make a difference for a while, but now it wants to
reinstall when I connect to the printer.

When I disconnect from a printer, I usually just unplug the USB cable. I
have a feeling I should be doing something differently...

Any ideas?