MS Access failed to create the Visual Basic Module '|,'

I am trying to create a VBA pocedure to work with a Combo Box. Every time I
try to enter the procedure code, I click on the "..." to create the
procedure, and I get The Choose Builder window. I choose Code, and hit OK.
Then I get the "subject" error (above),with an explanation:

" If your database is on a network drive, check your network connecction,
and then try again", with an OK button.

There are no modules created in the database. I don't know what the data
following the word Module mean: '|,'

Wish I could give you more information, but that's all I have.
I'm using VBA 2000 (9.0.4402 SR-1).

I would appreciate any help you have.
Regards,
10SNUT

10SNUT