Kind of difficult to understand what you are trying to say.
Are you sure that you don't just mean that your monitor is no longer displaying red - in which case, a loose monitor lead would be the first point to check.
Hi rojash,
Thank you, you were right. When I first examined the monitor lead, everything looked ok. However, with a very thorough check , I found a damaged pin. All ok now.
Thanks for your imput.
curitis