I just created an event in JEvent, then setup the event in DT Register. Then realised I had given the event the wrong name so went back to JEvent to rename it. THen went to the menu link that I setup that used DT Register and it came up with this error 3 times
* JHTMLicon not supported. File not found.
* JHTMLicon not supported. File not found.
* JHTMLicon not supported. File not found.