Terry,
I experienced a similar problem a few weeks ago which may or may not be the
same as yours.
In my case, I had a backup copy of my .adp on CD. Each time I copied the
file to my machine and attempted to display the code in VBA, I found that
only the declarations section would display for each module. Not one of the
procedures would display.
After further investigation, I found the source of the problem. My user
profile on that particular machine had been corrupted. My corrupted profile
somehow prevented the code from displaying in VBA. I copied the same file
to another existing (and non-corrupt) profile on the *same* machine and was
able to display and update my code.
The final solution was to create a new user profile.