> > It would be interesting to know what you find ... please share it. Well, the test went off well today, after initial problems of using too long a supply cable, and getting a brownout as a result (sigh) and having too reflective a surface fro proper tracking (sigh) it went off withou a hitch, the CCD in the mouse worked fine, and the PIC seemed not to be having any ill effects due to being in a high magnetic field. I'll keep everyone advised as time progresses, if there are any difficulties encountered due to life in a magnetic field. Ugh, I keep wanting to use a realy here... Like that's going to work... --Brendan -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.