I've been having a bunch of 'unresponsive' dialogs but I havin'g verified the culprit (recently did the maemo 2.1upgrade). Not enough info to report outside of this mentioning.
I cannot adjust the audio delay in the gui menu. I can highlight and select it, but no button actions will change it from zero. The earlier key remapping I did to the input.conf now hard locks the entire system when pressing up or down.