Hi LyXers, this bug is new in 1.0.0-pl8, i.e. it wasn't in 1.0.0-pl2, my last version: 1) define a math-marco with one argument, say "<#1>". 2) Enter math-mode, insert this macro and put a char in, say 'a', you get |<a>| (The | symbolize the math-mode margin) 3) Leave math-mode with ESC 4) Use the Left-key to re-enter the box. The cursor should be after the macro behind the >, but it is inside the macro behind the a. Have fun, Fred Fred Hucht, Institute of Theoretical Physics, University of Duisburg, Germany Email: [EMAIL PROTECTED] http://www.thp.Uni-Duisburg.DE/ "Der Koerper der algebraischen Zahlen ist kein algebraischer Zahlkoerper" (E. Landau, Zahlentheorie (1927), Satz 718)