Aidan Kehoe writes: > It should be possible to avoid this in VM. AIUI it’s a result of > doing coding system and base64, quoted-printable decoding on > displayed text, which will always cause a redisplay flash if the > relevant text is being shown. (Text is inserted, more text is > deleted). It would make more sense to do all the decoding somewhere > that's not being redisplayed, and only show the text when the > decoding is finished. I guess you could double buffer, have one buffer for the current view (or preview) and another where the work is being done. Is that what you have in mind?