I haven't had enough time to look through the manuals (nasty things - written in Fluke-Speak) but I was wondering if there are simple tests in the 9100 that compare to the 9010A. For example the ROM test (one sets the hex area to check) does it produce a signature or checksum? RAM test? Learn? I know I should read the books, but, heck, I'm hoping someone here with more experience in this series can give a couple of quick guidelines... John :-#)#