I have: set index_format='%4C %Z %[%b %d] %-15.15F %?M?->%4M&(%4l)? %s' but when a message has more than 9999 lines, the tree isn't correctly displayed at this message. -- Vincent Lefèvre <[EMAIL PROTECTED]> - Web: <http://www.vinc17.org/> - 100% validated HTML - Acorn Risc PC, Yellow Pig 17, Championnat International des Jeux Mathématiques et Logiques, TETRHEX, etc. Work: CR INRIA - computer arithmetic / PolKA research team at LORIA