Did you try pressing the "Refresh" button in the top right?
Is the ebay cable a USB cable?
If you look in the control panel in Windows, and look at the properties for your USB cable, does it say that is an FTDI device?
Yes, but Refresh wasn't making any difference, same effect as if I press if while away from car with a cable disconnected.
The cable is USB, it creates a virtual com port (it set to COM port 6).
I checked then twice, reinstalled drivers - yes, it clearly says that cable is a FTDI device.
I tried different buads, fast\slow but still it's like the program doesn't react on any action