retrolink GC controller

Hi, firstly apologies if this topic has been covered - I searched and found nothing.

I am using a Retrolink USB Gamecube controller (one of these: http://www.goldenshop.com/ai/products.php?118)

It has installed correctly on my Windows 7 pc - but I can't activate it on Dolphin Emulator. Anyone else had this issue?

In the controller options section, 'generic USB Joystick' is shown but when I load the games they do not work. I have also tried enabling 'Background Input' to no avail.

Any help would be greatly appreciated.

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