I got back from vacation and started working on my finances but Quicken HAD to update my Classic. So I let it [my biggest mistake!] and as usual it wouldn't restart without my finagling with it. This time, however, no amount of trying would restart the program. And I keep getting this message: Only one instance of the Quicken installer can run at a time. Close all instances of the Quicken installer and try again. (if the problem persists, restart your machine and try again.) I only have one instance of the installer and have restarted the PC several times. I need help.