After purchasing online, dl complete, and launched the installation file, I am asked to agree to the terms, enter the serial number, and after the hd spinning for awhile a message appears saying the installation was interrupted and to try again. The machine was rebooted and attempt to restart several times with the same message. Any suggestions on how to get this program installed? HW: Gateway CX2610, 80 GB SATA 5400 rpm, 1 GB memory, and Windows Vista Ultimate. A Seagate 320 GB USB external drive is attached (also tried with USB drive detached). Update: I've attached a screen shot of the message returned by the installation program.