This is a must-have plugin to display chessgames in pgn format in joomla! Last version seems to have fixed some issues of appearance on IE and a strange "memory" problem of the previous releases (i.e. when publishing a game on an article and then replacing it with another, the first game still appeared on the frontend and could be followed normally).
It is also safer to paste pgn code on html editor as mentioned. The only issue I face right now is that articles with EmbedChessboard plugin fail to validate.
Thanks a lot for your great job! ;)