suspecting that R33 is shorted, is a resistance measurement across the R33/RFC3 pair meaningful, or do I need to disconnect one end of R33 in order to get an accurate reading of its resistance? John Ferguson AI4TO **************It's Tax Time! Get tips, forms and advice on AOL Money & Finance. (http://money.aol.com/tax?NCID=aolcmp00300000002850)