I'm looking for software that duplicates the functionality of the
Pixeltouch utility included with Matrox graphics cards but works with
any video card.  Essentially, you press a hotkey to toggle a lower
resolution viewport of a portion of your whole desktop.  For example
if your normal desktop is a 1600x1200 rectangle your monitor might
show an 800x600 portion of that desktop at a time.  When your mouse
hits an edge of this 800x600 little box inside the 1600x1200 big box,
the screen scrolls over slightly.  I have searched in vain using
combinations of "zoom", "magnifi-(-er,-cation,etc)", "utility",
"virtual desktop", "pixeltouch", and the like.

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Request for Question Clarification by blader-ga on 30 Aug 2002 22:04 PDT

Utilities like this seem to be bundled in various video cards. Which
video card are you using now?

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Clarification of Question by thingshavechanged-ga on 31 Aug 2002 19:08 PDT

I am using ATI All-in-wonder Radeon.  I think it's the same as Radeon
7200 driver-wise.  All the stuff I've been able to find work like
this:
(1)virtual "physical" magnifying glass-- you drag a "lens" around the
screen using the mouse and it magnifies whatever is under it
(2)similar to the Magnifier accessibility tool that comes with Windows
2000 and XP -- a separate window on your screen that shows the area
around your mouse cursor, enlarged.

here is somthing that might work.

http://www.enablesoftware.com/evd.htm

also Xfree86 can do this very easly under linux.