2 datepickers wouldn't work on 1 form
I added 2 date pickers to a form, and only the 1st time I clicked in one of the date fields would the date picker pop up. It would never show up again.
I resolved this by going to the jquery home page, and updated the jquery from 1.3.2 to 1.4.4, and the jquery ui from 1.7.1 to 1.8.7. It took a little editing, but now it works.
Please update jquery and jquery ui in CSS Form Builder.