Herbert Graf wrote: > I haven't been exposed to the problem but from the > sounds of it "normal" testing should have shown an "issue". TTYL Not if operating inside the "safe" limits. If you design for 1 Mhz, why test at 10 or 20 Mhz ? Jan-Erik. -- http://www.piclist.com hint: The list server can filter out subtopics (like ads or off topics) for you. See http://www.piclist.com/#topics