Hi, I once replaced all the underscore assagissements (_) in Seaside 2.7 with propre ANSI assignments (:=), but they keep on reappearing. Underscore assignments are deprecated in 3.9 and will very likely disappear in one of the next versions of Squeak. Cheers, Lukas -- Lukas Renggli http://www.lukas-renggli.ch