Due to my constant (consistent?) ineptitude, I have again released a plug-in before its' time.
When I wrote "M_CB" I made some mistakes in the button attributes code that I just flat-out missed. Well, they're fixed now (crosses fingers (and everything else I can cross, too)).
I've uploaded an update, and it is currently "Pending". As soon as it's approved it can be downloaded.
I apologize for the problems this has caused, and my ineptitude in general.