disappearing macros and modules?

[GreyHounds]

One of our admins runs processes from access dbs. Yesterday she opened a database and there were no macros or modules. Thought it was a fluke and requested a restore from back up. This morning she was checking on another database and found the same thing.

Two days in a row, two different databases. Macros are gone and Modules are gone. I have done the following and they haven't appeared;
checked security level
checked for hidden objects
compact/repair
de-compile

Any thoughts as to why this would be happening?

Thanks for your help.

Laura