I have a Philips freevents PC hooked up to a normal LCD screen (1024x768). I now bought a new LG LCD-TV and want to hook it up to my PC. My PC goes through the boot sequence but when the desktop should come up it just loses signal,it works when I boot in VGA mode and when I boot normal on my old screen and just swap the RGB cable to the new LCD it work aswell! Why wont it boot when its hooked up to the new screen? resolution is 1280x768. I have a ATI Radeon x700...