Tradeskill window problem
 

Currently I am using Fabbe's Classic UI which looks like the very first UI EQ used. I know there are some XML problems with it so some windows will not work properly. One that I know in fact does not work is the tradeskill window.
When I try to open it nothing appears. . .nothing at all. It makes the sound of a bag opening but nothing comes up. Not the experiment window option or the full tradeskill window itself. (By tradeskill window I am talking about forges, kilns, ovens, tailoring kits etc.)

Is anyone familiar with this client incompatibility and have a quick fix for it? Is there a file I can locate (specific name) I can try to delete and repatch, or something I can dowload to replace the faulty one.

I can load another skin, like classic velious, default or Draxu, and it will work for those UI's. but I like the classic light-gray stone UI and I would hate to have to keep loading another UI just to tradeskill.

Any help would be greatly appreciated.