Can't do this
When I try to increase the size of the video RAM beyond 16 K in XP, I get a blue screen on startup, no matter what size I change it to. It complains about attempting to write read only memory. So I can't do step 1.
Step 2 suggests that I set both of my displays to the same size. But I have one 30" display and one 19" display, so that suggestion makes no sense for me.
The way it is now, with my small display to the left of my big one, I'm unable to move a window past the center of my big display, and it doesn't redraw completely, either.