Thanks for your Kind replies Guys!
Yes I have bought this monitor few weeks ago. Its spec says that it supports 1400 X 900. I have set the Onboard graphics card settings to 1400 x 900 as well. If I do not play the DVD in full screen mode then the quality is okay but if I play full screen video then the image is a little bit blurred... I'll try other resolution settings as well to see if it makes any diference.
BUT please advise if installing a Graphics card in this GX280 would make any improvement in the quality of video, if yes, then which one would you recommend.