I think I got the model right A90F the problem is, when its on it seems to
work. but when its hooked to a computer and shows the computer's output it
is yellow.

so I adjust the colors and find out the GREEN color wont adjust and it is
"locked" on the menu. and it wont let me adjust it. how can the monitor lock
a color and refuse to change it? the green is set to like like high, and
locked and causing everything to be yellow. is there a way to fix this? or
is the monitor just messed up beyond repair? this monitor looks new its a
19" someone threw it away I guess cause of the color problem. if its easily
fixed I want to keep the monitor! anyone have any suggestions? I dont have
any manuals to troubleshoot, and im sure that wouldnt be listed in the
manual. thanks in advance