I started the redesign and now I have a wonderful dialog that goes bang when you try to close it. Help! I suspect it's a problem with a callback being sent to a form after it's been hidden. I also thinks it's causing a BadDrawable error because of my new nested tabfolder arrangement but I haven't got any proof yet other than that it didn't do this before I nested the tabfolders. I'm tempted to override the hide() function and hide the nested tabfolder before hideing the form but I'm not convinced that will help because this looks similar to the "LyX: this shouldn't happen..." stuff that was caused by an input field callback trying to call a form after it had been hidden only this time it's killing LyX -- pretty neat :-( Allan. (ARRae)