Autolaunch First Attachment - Grey Screen

Having some issues with an application I’m writing.

I’ve been embedding OLE objects into a number of forms and they’ve been auto-launching fine (code nipped from MS Office Library) but the size of images is horrendous (300kb JPG file ends up as a 10Mb document!)

To resolve this I’m trying to attach the files in a RichText field and use the autolaunch option.

This is giving me a grey screen with no other valid content…

Any help would be much appreciated.