I don't have my laptop with me at the moment to test, but I believe that you can change the picture size between 16:9 and 4:3 on the VGA input... do you have the correct one selected?
A VGA to HDMI cable probably won't work... but a DVI->HDMI cable would (and I think most computers these days have DVI output).
Ok so here is my issue. I hook my desktop up to my 46A650 using the PC input. I have my resolution set to 1920x1080 with my computer monitor and it looks great fits the full screen. But when i hook to my TV 46A650 it doesn't fill the full screen unless i change the resolution to 1360x768? The screen fits North and South on the TV, but it's shrunk East and West. Almost looks like its shrunk to 4:3 aspect ratio. Any ideas how to fix this?
Also can i buy a VGA to HDMI cable and run this cable from my desktop to the TV? I have read that VGA is analog and HDMI is digital so these cables won't work. Is this true?

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