Outside of BIOS updates and making sure your resolution is good, the only other suggestion I can make is to reduce the overscanning (0%) or adjust the output settings to see if it will take.
I have tried several suggestions from the web with no results. The PC input selection on my TV remains gray no matter what I do. I am very inexperienced in this department.
My computer is a VGN-FS742/W running on Windows XP SP3 Home Edition. The video adapter is a Mobile Intel 915GM.
I read around and it seems to be a common situation for Samsung TVs. I pretty much followed the advice I've come across:
Updated my bios. I even bought two more cords because I read that some cords won't work.
I'm not too savvy with the technical settings so if you could guide me Barney style, I don't mind.