I use .ds BLD \f3\\$*\fP
and this text is partly \*[BLD in bold face] to switch to bold face and back within a line of text. This works fine as long as there is no german umlaut in the argument to BLD. With an umlaut, I get groff -Tps -k -t -mom -P-pa4 - > /tmp/4451out.ps <standard input>:219: missing `]' <standard input>:219: invalid base glyph `u00F6\fPr]' in composite glyph name <standard input>:219: warning: can't find special character `' Seems, groff is confused by the '[' produced by preconv. Is this a groff bug, or my fault? Kind regards, ulrich