Can see form in design view but not in open or layout view

[Debbie]

I have set up the tables, relationships and forms. When I first created the
form I was able to view when clicking open. I made a couple of changes and
now when I click on open a box pops up to enter perimeter value. Also, I can
no longer see the form in opne or layout but if I click for design view, I
can see my form and all the tabs.

 

[Klatuu]

There is either something missing or somthing is named incorrectly. Had a
similar problem recently where a new version was installed in the front end,
but the table in the back end had not been updated properly (a new field) and
the new version of the form was looking for a field that did not exisit. The
form opened, but just sat there blank.