On Firefox 2.0, Linux, I'm seeing horrible performance issues on a draggable div. I thought it might be due to images in the div, but I removed all of that and even a simple div with little content performs poorly. Interestingly enough the demo on the jqueryUI site works great. This makes me think it's something else on my page.
My question is: what kinds of things could effect the performance of the draggable?