But TES4Gecko keeps getting hung up at 96% and it never finishes. I've tried two different versions of TES4Gecko and the same thing occurs. Any advice?

Use TES4Edit?

Thanks. Just DL'd TES4Edit instead. Gecko has an obvious "Clean Plugin" button. I can't tell within TES4Edit how to accomplish that.

I'm no expert, but this is a http://cs.elderscrolls.com/constwiki/index.php/TES4Edit_Cleaning_Guide#Section_.232:_Actual_Cleaning_Instructions.

Yeah, use TES4Edit. TES4Gecko doesn't work as well. The instructions for TES4Edit look intimidating, but you can ignore most of that page and just skip down to the cleaning instructions, which is what anithinks linked.

Thanks - success - only had a dirty reference to the HELLO dialoge thing. That's pretty typical I suppose.