Click on Image Control disables it
 

I have an image control and a button that brings up a common dialog
box for the filename. It works fine, but when I click on the image
control, I can't change the image.
Image1.Picture = LoadPicture(filename) does nothing.

I don't have any code for the Click() event, so I am really puzzled.
Is there any way to avoid it locking up, or whatever it is doing?