[TYPO3] RTE in the backend isn't loading - I get a runtime error in IE

[dave typo]

I've been editing an extension that deals with a RTE in the frontend. I
believe that my editing of it has created an error in the backend.
Specifically, the RTE doesn't load, and I get a runtime error in internet
explorer.

here's the error that I get:

each is not defined
registerPlugin2("each", [])rtehtmlarea_htmla... (line 64)
setFullHTML()rtehtmlarea_htmla... (line 64)
edHidePopup(1)rtehtmlarea_htmla... (line 176)
this.registerPlugin2(plugin,args);};HTMLArea.prototype.registerPlugin2=function(plugin,args){if(typeof(plugin)=="string"){var
plugin=eval(plugin);};if(typeof(plugin)=="undefined"){HTMLArea._appendToLog("ERROR
[HTMLArea::registerPlugin]: Can't register undefined plugin.");return
false;};var obj=new plugin(this,args);if(obj){var clone={};var
info=plugin._pluginInfo;for(var i in info){clone[i]=info[i];}



however, upon uninstalling the extension, the error still persists.

It also may be a result of a problem with the upgrading from 4.04 to version
4.11

Does anyone else have any experience with this, or advice that I could use
to solve this?


thanks

-dave