A couple of times in the past week my monitor has gone black and the message "check your signal cable" has been displayed, but the computer is still running. I tried turning the monitor off and then on again with no luck, so I have been forced to use the reset button to turn the hard drive off and start all over again. Both times it has happened while either viewing an email or clicking on a weblink in an email. Any connection, or is it something more sinister?!! Usually when the screen goes blank the computer has crashed and gone off anyway, but in these instances you can still hear it running but there is no display. Any help gratefully appreciated. It's a PC Company Athlon 1600 running Windows XP Home.