On Sep 19, 2011, at 1:30 PM, Tereza Snyder wrote: > "(tTestA1 <> tTestA2)" is not the same as "not(tTestA1 = tTestA2)" when the arrays are unequal. OK, Tereza, you're not crazy. The dictionary entry for "<>" says: "Use the <> (inequality) operator to compare two numbers or to compare two strings." -- Dick