I have recently added a Aten CS-62 KVM switch to my set-up to allow me to use a Vista machine and an XP machine with the one monitor & keyboard. The problem is that since I installed this I cannot get the native resolution of my monitor - a LG Flatron W2234S which should be 1600x1080. All I can get in the Display Settings menu in Vista is a lower or higher resolution. I am currently on 1600x1200 which looks 'smeared' and its hard on the eyes. This happened when I initially installed the switch but then mysteriously rectified itself. Now it has returned full - time. The graphics card is a Sapphire HD 4670 512mb PCIe. The other computer has a Sapphire Radeon 9550 256mb and runs with the correct resolution on the same monitor.