Dear Ernest, I read your example with PC Repair Assistant from your book Jess in Action. At the final of the chapter 13 you have added a combobox and a button that generates the event associated with the selection of an item from the combobox. I have tried to remove the button (I mean ?*acombo-ok*) and to add the ActionListener direct to the combobox. (?*acombo*). (?*acombo* addActionListener ?handler) The result is that one single rule will be activated the first regarding the architecture of the computer. What shall I do? Can I add a handler to a combo box with a list of items that is variable? Best regards, Ana
