I purchased Fix-it Utilities Professional 12 from Staples today. When I enter my serial # C311-0271-00005-H1YX-HMGF-1UX8-M1DX I get a message saying it is an invalid serial number. As an alternative I tried to install it as a trial installation. When I get to the point where I enter the serial number in the registration the comupter locks up. I looked at the FAQ list and it said there was a problem with serial numbers beginning with "A312" and refers me to a new link. It does not offer a solution for a serial number beginning with "C311". Where do I go from here?