I tried using the cable that came in the DELL box and it has made everything sharp and lovely. I noticed the cable has a different label on the end with fat embossed letters "DUAL LINK". So there's a trap!
Thank heavens lots of modern apps like VS2008, Internet Explorer, Word, Excel, etc recognise Ctrl + Mouse wheel to zoom in and out. The default appearance of most apps is crisp but tiny on the U2711. I think there's a lesson in this for people writing new apps to make sure users can adjust display settings easily. I'm certainly going to put extra effort into some new WPF apps I'm working on to allow rapid zoom of important screens, which is luckily quite easy thanks to transforms. Cheers, Greg
