Can't Select Main Form

J

JamesJ

My db is a Access 2007 converted from 2003.
I'm attempting to change all my forms with split forms which
oesn't require much. But, at times I'm unable to close my
Main form (which is more or less a switchboard) which I created.
This occurs after I close a form I opened from the main form click
the caption's close button on the main form and nothing happens.
The button doesn't even change color to indicate you are over it.
Also, at times, when I am able to close the main form I'm unable to
select anything in the navigation pane. I am however able to select
and use everything else - ribbon, office button...
These are not tabbed fo
I even deleted the db and imported the form from my 2003 backup and
converted it .The first time this happened I didn't convert it.
 
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