10.1 appears to have broken my mouse and k/board ?

Crunchy in milk

Journey Agent
Since the update to 10.1 my pro apple seethrough 'dust magnet' usb keyboard (connecting through the usb port on my monitor) works ok except that the eject key no longer works, which it did in 10.0.4 :rolleyes:

Similarly I appear to have lost the mouse menu option of 'holding down the button' and a context menu appearing. To get a context menu at all now, no matter where, I have to use control + click..

I've had a gander in the preferences under mouse options, keyboard options, universal access, but theres nothing to change this. Is there some terminal script I can input to get these two things working again? they are just minor issues that put a tarnish on what's so far a great improvement to the os.