Hi Mo
how are you connecting the m/c's when you do usb-usb.Do you have a usb hub in between?'cos a straight usb cable between the systems can be problematic (it can pop both systems)In fact I've been told it can cause a fire."
Take a look at
http://www.usb.org
[This message has been edited by bodger (edited 06 January 2001).]