"Too much recursion"

That's the Javascript error I'm getting on Firefox when I run my GWT app. It works fine on IE, though. And here I was hoping to be done with my YUI based GWT drag-drop example in a day or two. No point in continuing unless I can get it working on FF, though.
It looks like an equals() function is being called recursively somewhere. Debugging generated javascript is a total nightmare. Oh well, back to work...

Update (20061123,1910):
Got it working. Of all the dumb things, it was a call to the toString() function of a GWT JavaScriptObject instance in my Java code. Commented it out and everything runs fine.