My monitor is a 22" with 1680x1050 native resolution, my VGA card is an ATI Radeon 9600, and I do not use the VGA cable supplied with this item.
After trying many switches, I felt very happy when I connected this switch for the first time (my PC was already started) and could use my XBOX 360 and my PC with its native resolution. The problem came when I restarted the PC, then the desktop couldn't get into the screen and I was forzed to downgrade my resolution to 1280x1024. But, if I connect the PC directly to the monitor, then turn the PC on (to get the 1680x1050 native resolution), and then connect the switch, it will work fine as the first time, but the problem reappears when I restart the PC again.
How can I fix this?
EDIT: I fixed it by configuring the graphic card at the ATI Panel. I switched off the "auto-detect resolution" option. Since it works perfectly, I rate it with 5 stars.