Software :: Xrandr Not Changing The Resolution (Debian Lenny)?

GNOME decided not to use the correct resolution ever. In Ubuntu, it got it automatically and that said it should be 1366x768, and when i run this:

Code:

xrandr -s 1366x768

I get

Code:

Size 1366x768 not found in available modes

So then I tried to run xrandr and find out what was available and I got:

Code:

$ xrandr
Screen 0: minimum 640 x 480, current 1024 x 768, maximum 1024 x 768
default connected

[code]....

So when I try to change it to 1024x768, I get the same "not found in available modes" message.