Tony, do you mean the pc boots if the monitor is turned off? However unlikely it may sound, it may simply be the circuit current is insufficient to power both the monitor and the pc. I see this occasionally with printers, which can really draw some watts, never with monitors, but I had to mention it since my first run-in with this was a real hair puller. I hope it is that simple. If it is indeed shorting, I have seen both types of behavior: lots of beeps and a partial boot, like from a short on a motherboard mounting screw, and nothing not even the fan runs, from a shorted diskette drive. Which behavior do you have? It would help narrow down the causes. tom turak ---------- From:TONY LODGE Sent: Friday, December 11, 1998 3:45 AM Hi Folks, Can anyone help me with this?Every time I connect the monitor up to the computer(its an NEC monitor) it prevents the computer from booting up just like it had shorted it.When I detach it from the computer the computer works fine.I'd appreciate any help. Yours sincerely, Tony. Curious about the people moderating your messages? Visit our staff web site: http://nospin.com/pc/staff.html