excel spreadsheet not visible

[mjlutz824]

I open an exisiting spreadsheet, and it's maximized in the Excel window.
When I minimize the spreadsheet (within teh Excel Window), it is no longer
visible, although it's there: if i select Full Screen from teh View menu, I
can see the file. If I close Full Screen view or select another view, I can
no longer see it.

I've had this installation of Excel for several months, and it's worked fine
until now

 

[Paul]

Make sure it is the only one open, then in (XL2003 or earlier) select
WINDOW>ARRANGE...>Tiled and hit OK.
Now save.
Sorry I don't have XL2007, but on the ribbon there will be some item which
will trigger the Arrange Windows dialog.
Paul