Switchboard Button Does Not Work

[TommoUK]

I've created many switchboards in previous versions of MS Access but this is
the first one I've done in Access 2007 and I've come across a problem that
has not occurred before.

I currently have 2 swichboards (the main one, and a secondary one that is
reached via a button on the main). When the database is first opened, all the
buttons work fine. However, when I run a routine that imports data and then
carries out a number of validity checks on that data (again, something that I
have done numerous times in the past), the button on the main switchboard
that links me to the secondary switchboard does not work. If I close the
switchboard and then re open it, it works again!

What's going on???!!!!!!!

 

[TommoUK]

PS I've tried deleting the switchboard forms and table and re-creating them,
but the same thing happens again!