Just to add some info to the driver signing issues, I got another Win7 Pro 64bit PC, and I ended up using tessen's instructions to permanently disable driver signing checks to get running.

I tried disabling Driver Signing via F8, but as soon as the computer was restarted, the driver failed to run.
One thing I did notice was that looking at the driver file details, all of the files were showing as unsigned. I even tried deleting all the listed files, then reinstalling via the signed driver download (http://www.dynomotion.com/Software/K...ivers_V434.exe), and they still showed as unsigned.

I've attached a screenshot of the driver file details, and all files listed were shown as unsigned.