I bought my 32LG3000 coming up to a year ago now and is still under guarantee so if worst comes to worst i can get it repaired. However recently i purchased a new graphics card for my computer (Force 3D 4670) which is now linked via HDMI to my LG TV which works fine. I also have an Xbox 360 which was originally linked through HDMI but as the HDMI cable broke (conveniently just as i ordered one for my computer) i plugged in the new one i purchased for my computer. I then turned on my T.V to see the picture and it came up with a black screen with a delightful message bouncing around the screen - "No Signal". I have tried resetting settings, restarting but can't get it too come up with a picture as it did before. At first i thought it was the cable so i tried it with my 360 in another T.V and works fine. Is there any reason for this? Additionally, this issue is with every HDMI port in the TV, 3 altogether which detect that i have connected something through the 'input selection'.