when i use my monitor with ati 5850(asus MS228H) throgh HDMI cable, black borders are showed around the screen..... problem is solved by setting the overscan value 0% in CCC..... after restart or shutdown or resulation change it shows black borders again ..... n i have to set the overscan value again .......... again and again!!!!! bt when i use VGA ...its ok...no need to set overscan values..... plz plz fix that problem...... is their any major difference between hdmi and vga??? i only knw that hdmi is digital and vga is analog..... how i know that i'm using ati avivo when i playing hd content.... how to play 1080p x264 more smooth......