samsung resolution issue

[vveksuvarna]

i own a samsung t-220 monitor. the display works fine. but somehow, it wont let me set the resolution at full capacity (1680 x 1050 ).

as of now the maximum resolution im able to work at is 1600 x 1200

i dont know whats going on, im tired of googling solutions, the most i could get from other tech forums was that it has something to do with EDID.

any help or participation is much appreciated.