ive always wanted to 3d game, or just game at above 60 hz so i dont think i am, are you sure you dont have any 50 pin connector controller boards with display port so i could use the 120hz screen?
Yes, I am very sure we don't have any of 50-pin connector controller boards...
(you are not the only one to want to game at 120Hz on a budget ;)
This guy is close-ish, maybe? Check him out - at least this will give you more background into the 50pin:
http://mikesmods.com/mm-wp/?p=381
You need a controller board thing, that's about as far as I know from my research back on using laptop displays as regular displays.