Hi Le Roux Joubert
When not in a call, press the sequence:
"disconnect - * - # - * - # - 0 - x - #"
Where x is output 1 to 4 to change the OSD and restore the resolution (1280x720@60Hz for HDMI and 1024x768@60Hz for DVI) to the selected output.
Was this what you were looking for?
/Magnus