I have a 20D, several lenses, and a G5. I wanted a truely shirt pocket size camera so I could almost always have a camera with me. I guess I was somewhat surprised to find that, apparantley, I can not force the SD's flash to fire (for fill). I can live with not being able to adjust the ISO because I doubt anything I shoot with this camera would be printed larger than 4x6, but, if there is some 'trick' to forcing the flash to fire it sure would be helpful.

