I couldn't access either of those options due to no keyboard. Well I did try system restore but the last (and only) restore point was created whilst I was trying to sort out the problem, so no joy.
I've taken drastic measures and bought a wirless logitech mouse/keyboard as it connected via usb.
Although, strange as it seems, after installing the software from the bundled cd and d/ling and installing the update it stopped working! After uninstalling the software its now working. Hence all this typing
I did find whilst trying to scan the driver folders for virus/spyware infections, that there is an ACER directory, in which is a seperate driver folder to that of the Windows one.
Not sure but think this might have a BIG part in my problem.
Maybe whilst booting this folder has somehow been ignored/skipped and no longer allows Windows to access the necessary drivers.
I will contact ACER but if you guys do have any ideas it would be great!!