Please help. Mouse Keyboard issue.

[sledder]

Hi Hope someone can help.
I've been using this G4 for a couple of years now. Just recently it's been locking up every few minutes. Here's the thing, If I unplug the USB mouse or keyboard it frees up again. I have tried:

A different keyboard.
A different mouse.
Tried both USB ports and the rear of the CPU.

When it locks up I can still use my keyboard shortcuts sometimes but not always. Very Strange.

I don't think it's hardware but don't know enough about it to be sure.
It happens every few minutes. Anyone have any idea?

Many thanks in advance

Darren

 

[Reflow]

Do you happen to have another KM around that you can try? Have you done any maintenance on your machine? Like repair permissions..

 

[sledder]

Hi thanks for your reply. I have tried another keyboard and another mouse. I have carried out no maintenence other than running Nortons Utilities and Disk Warrior. I don't know much outside of running my applications so I know nothing about 'repair permissions', but I'll do a search on it and try it.
Many thanks.