Ok i have a Gigabyte GA-73PVM-s2H motherboard and a intel Q660. MY monitor is viewsoinic 19". Graphic Card ATi HD 5770. So for some reason i had to reinstall my windows 7 and when i reinstalled the computer bootem in windows normally with big icons(no graphic drivers) and then i installed the graphic drivers and rebooted the PC but then after windows loading screen i had a back display and i DID NOT get the no signal error. THe blue light is still on and the strange thing is that when i get the black screen i cannot turn of my monitor by the standby button. So to test i removed the graphic card i removed it and booted with inbuilt gefore 7100 but again after installing the drivers i get the black screen.
Then i pressed F8 and selected the VGA mode(low resolution) and my pc booted normally and when i changed the resolution to the recommended one 1440X900 i again got the black screen and at lower resolution my computer is running fine. I can also boot in safe mode.
Please someone help me out to solve this problem..