My LCD monitor just lost the signal from the PC (Message signal lost). I can boot it up in safe mode but normal booting just gives a black screen. It has been working fine for years with no problems.

As it worked in safe mode I thought OK cables are ok took card out reseated it but still the same problem.

I bought a new video card and now the problems start. With the card installed the moment I turn on the PC the monitor displays the message Mode Not Suuported H31.4 V 44.5.

I can see nothing apart form this I have researched this error and the answer is go into safe mode and adjust the rate but I can not. I just get the above error message and a black screen cant see a thing. If I change the card back to the old one I can get into safe mode again.

Any thoughts greatly appreciated