My last post I tried to say I think it is a conflict with the javascript function ----- ---- but because this forum uses FCKeditor it removed everything after the magic word. FCK uses javascripts. I hope this will get there without removeing everything.

 pretty close it's a security filter to stop any public users posting scripts to the forum so there a number of javascript functions removed. As Chris said we've been hping for alterations to the core security filters to fix this.