I\'m not sure why the TSpeedButton has this property but when a TSpeedButton is the only button of a given groupindex, it doesn\'t stay pressed, whether or not \"AllowAllUp\
Hm, strange, I remember using this quite a few times with success. Perhaps you should try playing with the SpeedButton's Down property? I don't think it toggles automatically when you click it --- you should explicitly toggle Down, I guess...
[edit: replaced Checked with Down --- TSpeedButton doesn't have a Checked property, sorry!]