OK, it's been a long time, but I do have an application in VFP6 still living. (Can't convince user to upgrade.. :( )

Anyways this is the error I get with all of the menus in the application when I try to build it.

Menu MAIN is invalid 
Line Number: 69, 

where the capitalized text is the menu name.

This happens with the two other menu files as well, same error, same line number.
As well, I cannot open the menu with the menu designer in VFP6. (I get a Menu is invalid error)

Now the weird part.

I would expect this if the file is corrupt, right? But if I try to use the menu file...
i.e.

use main.mnx

There is no error when I try to open it this way.

If I open it exclusively, I can pack etc.

BTW, I tried opening it in VFP7's menu builder and it opens fine. (Made a copy of the file and opened that.)

BTW, I tried the

use main.mnx

command in VFP7 and VFP9 and it opens no errors, just like in VFP6.

Any ideas?

TIA,
Mike