Periodically, the printer driver for my HP Deskjet 710C crashes. When that happens, it must be uninstalled and reinstalled. Sometimes, the uninstall program freezes before it completes its work. Until today, that has not prevented me from reinstalling. Today, however, it did. Now, the entry for the printer driver is done from the add/remove list, and when I try to reinstall, I get a message saying it won't do that until the uninstall is completed. Since the driver is no longer on the add/remove list, I cannot complete the uninstall. What do I do now?