[Null]

very well could be the Graphics card.


altho i think the green shade thing is actually the monitor. old monitors go funny after a while and can turn a green tent. Then you smack the thing and it'll flick back to normal colors.... Normal life span of a monitor is about 5 years. (on average. some much longer. some shorter. )


Also i could be the monitor itself limiting your colors and resolution.

if you goto properties on the desktop. settings. advance. umm. is there a monitor setting somewhere around there where you select what type of monitor you have? (im guessing. theres an option somewhere i dont remember exactly where it is)


i do not think its Windows tho. theres no reason for a windows to do that unless its got the wrong setup.