can someone please help me solve my monitor problem? ive just bought an asrock k7s41 motherboard installed it along with a geforce4 mx440se agp graphics card and things were great for just over a week then my monitor an avidav 19inch lcd tft keeps saying no signal input, so i tried it without the graphics card and used the onboard graphics card but to the same effect no signal input so i tried my old faithful samsung syncmaster 750s monitor and the same message appeared by this time i thought get the petrol and lighter out, what could the problem be? can anyone help?