I have this same problem. NOT operate the keyboard and mouse in the installation screen.
The version I am installing is Niresh's Mac OS X Mountain Lion 10.8.5 for Intel and AMD - USB
I tried the following combination of all ways:
Usb disable Injection
I tried another mouse (genius micro traveler gm0800) and keyboard. always usb
I do not know what else to try. In the options window before the installation (clover menu) the mouse and keyboard work ok. But when it starts the installation window, stop working. The optical light is on but the arrow does not move.
Can someone help me with this? thank you very much!