I recently bought a new Samsung monitor (Samsung 27 Inch Series 3 T27B300 LED HD Monitor) and have been using VGA to connect it to my computer and have had no problems. However I purchased 'Premium HDMI to DVI Cable Gold 2 Metre' so that I could plug the HDMI into the back of my monitor and the DVI into my graphics card (GTX 770). But when I changed the source on the monitor and then boot up the computer the image is poor and all green then when it ends the boot up phase and ends "Starting windows" the image goes to black and there is no signal. I really don't know what I should do at this stage and have been scouring for answers. Can someone please help me? Am I missing something simple? Thank you for your time!