The resolution of 1072 x 600 is correct? You said that the Aero is disabled, it should be on for MP (shouldn't be causing this).
Overall I would guess it is a close relative to the half-fullscreen issue. Could you try the solution described in the thread linked above (connect via VNC whil TV is off, add the resolution you use normally and set this one to be the default)? It might help.
Overall I would guess it is a close relative to the half-fullscreen issue. Could you try the solution described in the thread linked above (connect via VNC whil TV is off, add the resolution you use normally and set this one to be the default)? It might help.