Another annoyance of the hires mod is that the cursor disappears at the bottom and right of the screen, the higher the res the further the mouse cursor will travel off the screen.
Thought: If the cursor is still moving over the entire screen at 1024x768 and anything higher the cursor is off the screen, the
displayed picture on the screen must be 1024x768, not the higher res, or is it, quite a mind boggler!!

I wish there was a fix for this but I think it's hard coded!!