I first used the HDMI port of my S2440L using an DVI-HDMI adapter, but then I eventually switched to the included VGA cable because I couldn't find out how to force Intel Graphics 3000 to display full range RGB (0-255). There was no discernible difference in the sharpness of text in going to VGA, and actually I could find no fault at all with the VGA output. I'm thinking maybe Dell used a high quality analog-to-digital-converter in this instance, since the S2440L has no DVI connection. In any case, what I've seen on this display is certainly evidence against the conventional wisdom that HDMI is always better than VGA. Perhaps I would see some improvement in image quality if I bought a separate video card so that I could get full range RGB through HDMI, but that seems to me to be a waste of money given that I have no problem with the output through VGA. For those of you not able to get HDMI to work right with this display, maybe you should give your VGA cable a try.