Anyone know how to update a status bar on a main form from another form?

I have main form that controls my app (frmMain) that I want to update the status bar from within another form that was called by the main form.

Here's the code I used but the main form never shows the text in the statusbar.

frmMain.sbStatusBar.Panels(1) = "My Test Text"

If I put this line somewhere in the code of FrmMain it will work.

Thanks.