I have purchased Dell 300SWFP HC Monitor, I installed graphic card ATI RADEON HD 5450 on Windows 7 working good with my view sonic 17 " monitor showing resolution more then 1200 x 800 but when I use this graphic card fixing it with a duel link cable one side DVI-D connector ( on monitor side) and other side HDMI fixing a DVI-I adapter on HDMI cable connector (on graphic card), my card supports DVI-I connector. The resolution is showing on bar as max 2560 x 1600 but work only on 1280 x 800. If I increase resolution more than 1280 x 800 it shows color vertical lines. Pl tell me the correct solution if any body had same problem. Is my graphic card and cable or ok or I have problem.