Hi there, I recently got an Acer 22" monitor. The max resolution is 1680x1050. I went to connect my MacBook via VGA, and when I set the display setting to the highest/optimum resolution (while mirroring displays), it still displays the same screen size as the 1280x800 on my mac. It's hard to explain: there is a wide black border in between the bezel of the monitor and the actual desktop (the menu bar and the dock are not at the bezel, there is space in between on all sides), like it needs to be stretched. When I put it into the desktop extension or whatever it's called, it works beautifully at the 1680x1050. But, I can't go into clamshell mode with either. I would like to have 1680x1050 resolution that fills the screen while having my computer in clamshell mode. I connected the keyboard, mouse, and monitor, closed the display, and touched the mouse and the keyboard. I tried this with mirroring displays turned on and off. If anyone can help it would be greatly appreciated.