Probably a noob question here, but I have a Dell with an ATI 128mb X300 graphics card and I want to go from a 4:3 to a 16x9 monitor. I noticed on the ATI website (Radeon X300 Graphics Technology - GPU Specifications) that the only native widescreen resolutions it shows are 1920 x 1080 and 848 x 480. Will this mean sub par performance with a current "average" 1680 x 1050 widescreen monitor, or would it be OK?