I'm not clear on how you're putting the graphic into the
popup, but here's an approach that works for me.
Create a new topic and insert the graphic using the RH Insert
> Image dialog. Make sure you're importing it from somewhere
outside your RH project folder, so RH will recognize it as a new
image that needs to be tracked in its project files and database.
Create a link from text, icon, image, image map or --
whatever -- to the topic with the graphic. Select the auto-sizing
popup option in the link dialog.
Harvey