Still no luck.

I get the same flashing red light when I plug into my comp. My computer makes the "bing/bong" when I plug in and unplug the Viper PC link cable.

I am still only getting COM1 and COM3 as options in the drop down. No USB option at all. I had trouble with this the first time I tried to use it. I was getting USB options but not USB0 options. Turned out that I had not fully plugged the two halvs of the PC link cable together. That is not the case this time. I'm not even getting USB options. I'm getting really frustrated with the whole process.