Packard Bell problem

[hairymonster]

Hi all. Having problem with PB Easynote C3223 laptop.

Once booted up, mouse works fine but there is a constant beep - beep - beep and the keyboard doesn't function. However, every keypress generates another beep the same as the the continual beeps as though the keyboard buffer is full.

With the keyboard disconnected there are no beep - beeps once booted.
I'm thinking the keyboard is duff but is there anything else that might cause this before I go and buy a new keyboard.

Thanks.