Sorry, what i tried to say was, when i drag it to the highest resolution, it will only like use half of my monitor.

These are the resolutions i can use:

800 x 600 - 1026 x 768 - 1152 x 864 - 1280 x 720 - 1280 x 768 - 1280 x 960 - 1280 x 1024

i got logmein, in case that would help you.