Thanks to everyone who responded. The antialias and boxtype properties didn't solve my problem.
Finally I went with this workaround: I copied the alphachannel of the text member two times onto itself. A first time with an offset of (1, -1) and another time with an offset of (0, 1). Michael [To remove yourself from this list, or to change to digest mode, go to http://www.penworks.com/lingo-l.cgi To post messages to the list, email lingo-l@penworks.com (Problems, email [EMAIL PROTECTED]). Lingo-L is for learning and helping with programming Lingo. Thanks!]