Seth Kellogg [Cakewalk]
Hold down Ctrl+Shift when launching SONAR. It'll re-personalize and probably copy over the missing metronome files.
Thanks, Seth, tried it but the metronome must have been really upset with me as it refused to talk to me at all!
Yeah, this is crazy making. I just killed the project file and created a new one. Not solved, but dealt with. :)