This may or may not be the cuase of your problem but it sure sounds like it. The error message "class not found" on jdk116 should really say: class not found...error in class initializition? It seems for security purposes, 1.1.6 will report class not found and abort if there are any exceptions during the initialization of the class (or any classes the initialization uses). The exception is actually generated by 1.1.5 also but 1.1.5 continues on and processes. 1.1.6 does not. To check if this is your problem (again it may not be..), I use the trace methods command line option to java_g and look for exceptions being thrown during the class intialization someplace (this generates alot of stuff so you may want to redirect it to a file for later searching). i.e java_g -tm CLASSNAME I hope this helps. Kevin H. ---------------------------------------------------------- Kevin B. Hendricks Associate Professor, Operations & Information Technology School of Business, College of William & Mary Williamsburg, VA 23187, [EMAIL PROTECTED] http://business.tyler.wm.edu