Access 2010 Navigation Form Target Names Problem

[lborn]

I have a Navigation Form that has multiple main tabs across and then multiple sub tabs below each main tab.

I find that sometimes the Navigation Target Name changes for the sub tabs. I have tried to think of how to catch when it is happening, but it seems very random. It seems Access just chooses another form in the database to display - which I know sounds bizarre and therefore there has to be a reason. It does not change the reference for the form I edit, it doesn't seem to be because I open a form outside of the navigation form, it's not after adding a new form. I can be out of the database for a while, come back and find it's switched the references.

I created the tabs and buttons using two different methods - I changed after this started happening hoping it would make a difference, which it did not. The names change for any button randomly, not just the ones created using just one of the ways.

The first way I typed the form's name in the "[Add New]" button.
The second way I selected the form's name from the drop down box attached to the Navigation Target Name field in the Property Sheet pane.

Has anyone else had this trouble? I cannot find anything on the internet that references this. Intermittent problems are the worst.

[AccessPower]

Could you post your database for analysis?

There is always the possibility there is some type of corruption. You may need to scrap the navigation form and start fresh. Add your navigation control and use the second method you listed to tie the navigation control to the subforms.

[lborn]

I just recreated the Navigation Form, before I was even done adding the forms it had already switched one of the target names

I am attaching my database, but I had to remove four tables that had confidential information in them, so I hope it doesn't affect diagnosis.

Thank you for your help.

[aytee111]

Don't use Nav forms, start with a blank form and design it yourself.