I have a toolbar with a GO sign on one of the buttons. When you click it, I want it to change to a STOP sign. I have both images in the imagelist, but cannot figure out the code to change the GO sign to a STOP sign. Here is what I have:

If startstop% = 1 Then
Toolbar1.Buttons(10).ToolTipText = "Start Execution"
Toolbar1.Buttons(10).Image = ImageList1.ListImages(10)
ElseIf startstop% = 2 Then
Toolbar1.ToolTipText = "Stop Execution"
Toolbar1.Buttons(10).Image = ImageList1.ListImages(14)
End If

But this is giving me Run Time error 35603 'Invalid Key'

What am I doing wrong?? Thanks for any help.