Hi there, I have a GUI widget developed in tcl tk scripting which has two tabs. one is "Add Server" the other tab is "Add Application". Add server tab is to add servers to a list and the second tab has a combo box which holds the list of servers. My problem is "I am not able to refresh the combo box content i.e., servers list". I want to refresh the list of servers in the combo box upon clicking the second tab(Add Application), thus it has newly added servers. Please help me out. It is very crucial in my application. Thanks in advance. Thanks & Regards Naveen