The following person created a similar situation on Vista, but I think the same thing applies to XP. He only took it up to 480DPI!
"Windows Vista DPI scaling: my Vista is bigger than your Vista": http://www.istartedsomething.com/20061211/vista-dpi-scaling/
The author even included the following warning, in red letters:
Warning: Do not try this at home. You will not be able to revert this change without knowledge of keyboard shortcuts.
To fix the problem, I think you'll need to use the keyboard shortcuts to move the dialog box(es) and to navigate through the dialog buttons, lists, etc.
"List of the keyboard shortcuts that are available in Windows XP":http://support.microsoft.com/kb/301583
"Keyboard shortcuts for Windows":http://support.microsoft.com/kb/126449
HOWEVER, the solution may be simpler.
I found another reference (http://www.vistax64.com/tutorials/84233-dpi-scaling.html
) that says perhaps the easiest way to recover from this ugly situation is to boot into Safe Mode and then restore the DPI setting back to normal (96DPI). Again, that link is for Vista, but you might want to try the solution (Safe Mode) in XP.
Edited by M..., 30 March 2009 - 05:45 PM.