Problem in Antec Kuhler 920 USB controller and Windows 7 (64-bit)

Currently my windows 7 doesnt seem to be able to detect my USB Controller.. it did before, but I still couldn't run the Chill ControlV.exe that's supposed to control my cooler so I uninstalled the program and started over. Now it could not detect the USB controller from any internal USB port in my mobo

EDIT:
My mobo is Asus P6T Deluxe V2 if it helps
 
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