Hello... OK... you need to have 1 Video device/card working at a time, to load drivers.
1) go into your BIO's and shut off the Motherboard/intel video... and set Bios to Exterior PCIe...
2) Save setting and Exit BIO's
3) plug your monitor into the 9600 gt and restart the computer into Windows.
4) Does windows now install a driver for it? if not, re-install the driver program... restart computer after driver is done installing.