Hi Match, I have just put the usb mouse back in and it wouldn't work but it did not show anything up in Device manager, certainly no yellow signs at all. So I moved the mouse to another USB port and that one works fine.
I have an Acer T180 D97Z and on the front panel there are three usb ports, two side by side with the printer attached to one, that works as I have just tested the printer but the other one seems to not be working. There is also one other port on it's own and that too is working fine.