After adding the image control to my UserForm, in the Properties pane, I can usually click on Picture, then browse to select a .jpg file on my computer, after which the word (Bitmap) shows in the Properties pane and the picture appears in the image control. But when I try to do this on a Mac, it lets me browse, but all .jpg files are greyed out and not selectable. I have tried cutting and pasting a shortcut to the .jpg directly into the Picture row of the properties pane without success.
I have also tried loading the picture at runtime using a command such as "me.myImageControl.Picture