Hi all, Another reply to Harold's question: > So, are the fast apps non-OpenGL and the slow apps OpenGL? Thae layout editor MAGIC, compiled with Cygwin (http://bach.ece.jhu.edu/~tim/programs/magic/windows/windows.html) and using OpenGL is totally slow (unusable) in -multiwindow mode, but o.k. in -rootless. Regards Holger