Consequently, browser developers should suppress this spacing
if it is the default (Motif?) or not invoke it if it is
optional.
This sentence contains an abbreviation U.N. before its close. The next sentence follows. The space after U.N. should equal that after "close." Fair enough? -- Terry Allen (terry@ora.com) Editor, Digital Media Group O'Reilly & Associates, Inc. Sebastopol, Calif., 95472