Dear guys and gals, Thank you very much for all your advices. Sorry that I did not participate in the debate since I have access to the net only on Sat and Sun. Got heated up there !. I try to figure something from all you responses and see how it goes. Thanks again. Yours sincerely, Hew How Chee Malaysia Electronic Engineer who got transferred to QA ################################################################ TechNet E-Mail Forum provided as a free service by IPC using LISTSERV 1.8c ################################################################ To subscribe/unsubscribe, send a message to [log in to unmask] with following text in the body: To subscribe: SUBSCRIBE TechNet <your full name> To unsubscribe: SIGNOFF TechNet ################################################################ Please visit IPC web site (http://jefry.ipc.org/forum.htm) for additional information. For the technical support contact Dmitriy Sklyar at [log in to unmask] or 847-509-9700 ext.311 ################################################################