screenwidth not going below 762

[DrakilorP2P]

When I resize the Graal window on a particular server the screenwidth variable doesn't go below 762, which causes some GUI controls to not follow the right edge of the screen correctly.
Same thing for screenheight, except the number is 265.

I couldn't find any obvious assignments.
I've also searched scripts for 'screenwidth', 'GraalControl.width', and some numbers around 762 and 265.

I thought that if anyone have had this problem before they'd know what to look for.