Bug reporting is tricky. Bugs are problems in software where the software doesn’t work as it should. “It doesn’t work.” doesn’t get you anywhere with the developer of the software in question, so the key is to report exactly what happend and what should happen very clearly. Steven Frank (of Panic, Inc. software-makers) has made a list explaining what you should and shouldn’t do when reporting bugs. One of the things Frank specifically mentions as being good ways to convey bug reports are images and video.