Strange Form Behavior

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I have a process that a user goes through maybe 30 times a day. The steps
are
always the same. During the process the sequence goes through 4-5 forms
being
displayed and allowing keyboard entry before a report prints from each form.
This happens at literally hundreds of locations with no problems and no
issues. However, on all of the machines at one single location a strange
thing happens. When the user goes to a form and the form displays, all of
the
fields will be accessible but the cursor dissappears. Clicking in any field
on the form the user can type but the cursor is not visible. The strangest
thing is that no matter what key the user presses on the keyboard, the
(ctrl+F1) key is the result (a 'y' with the two umlauts on top of it) in all
fields. Now, the titlebar of the form itself actually appears disabled, but
the form is not disabled. The REALLY strange this is that if the user
presses
the windows key on the keyboard (which activates the startmenu in windows)
and then clicks with the mouse on the titlebar of the form in Visual FoxPro,
everything returns to normal and the titlebar is now dark, the keys work
correctly in all fields, and the cursor is active. Once this problem occurs,
it happens everytime until I delete the resource file and restart our app
(or
so it appears).

All of the systems are new systems.
Windows XP.
6 workstations.

I have checked the power settings, desktop themes, resource files, other
Visual FoxPro apps and their files, replaced the keyboard, etc. It will only
happen at this site and then it is reproduced nonstop.

Any ideas? Why does switching tasks to/from windows startmenu fix it? The
form is the same form that has run for years (and called in the same
sequence) by hundreds of users.

Thanks in advance


.

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