John Gardner wrote: > What backflow? :) We'll never know since you didn't provide any context to your question. Once again, QUOTE the relevant parts of what you are replying to and TRIM the rest. Why is this hard to understand!? ******************************************************************** Embed Inc, Littleton Massachusetts, http://www.embedinc.com/products (978) 742-9014. Gold level PIC consultants since 2000. -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist