I have a form built with HTML_QuickForm which runs without any bugs on one server but I get an error when I try to run it on another server. The error is in the onQuickFormEvent() member function of the HTML_QuickForm_group class in QuickForm/group.php file. Everything as far as I can tell is exactly the same on the two servers... all the same PEAR packages are installed at the same updated versions. What could be causing this error?
