Duncan,

>I have a basic MMBusiness form with a DataGridView, mmButtonNew, mmButtonDelete, and mmButtonSave. This form is opened modally (i.e. ShowDialog) from the stock MainForm MDI. If I open this form when there are no other non-modal child forms opened in the MDI, the behind the scenes MM code executes as expected (pre-click event). However, if I open this form when there is also an open MDI child form, the MM code does not execute. Any ideas what I might be doing wrong? Thanks very much...

Hmmm...not sure what might be going on here...are any of the other forms non-MM .NET forms?

Best Regards,