Possible in some PC setups, not in others, and always a terrible idea.  You
don't sometimes toggle between two different programs on your PC?  Merely
setting the resolution back when your app is closed would not be acceptable
to hardly anyone and your app would just look amatuerish for the need to do
so.

Games are the only acceptable case for changing a user's resolution and I
don't know if even they have done that for a while now.  You just need to
design your app for a minimum resolution specification using your user-base
to establish what that minimum size is.

With the proliferation of LCD screens now you could possibly change to a
resolution that the user's display doesn't even support causing them to lose
their display entirely or at least distort it beyond usability.

John,

There is a program called Reschange.exe.  You can find it at
http://www.12noon.com/reschange.htm

I have never used it for an access app but I do for a Terminal program
and it works well.

Hope that helps.

Rick