I recently encountered the error "ColdFusion.setSubmitChecked" when loading a page that contained a cfform inside a cfdiv. Below is an example of the code I was using.

I had recently updated to version 8.01 of ColdFusion. The thought of that update jogged my memory. This project is using copy of the "scripts" in the root directory. I was NOT pointing to the "scripts" directory under the CFIDE directory. I thought why not? So I archived my old ajax files and moved a fresh copy over from /CFIDE/scripts/. What do you know that solved the problem.

That's two bugs I've found AFTER they have been fixed. Guess I'm just lucky that way.