Thanks ant512. I wasn't aware of that, but I'll get myself a new Amiga Mouse or PS/2 adapter too I guess.
At the moment I'm running the Amiga display through a a TV card in my PC as the Philips monitor died. If only I could get the Siamese working over serial... maybe I should try VNC. Has anybody tried VNC between an Amiga and a PC?
Thanks again ant.