Hi alltogether, I do have some severe problems running the Hierarchy-Editor from IC5.0.33 and IC5.10.41 (IC5.0.32 works fine). Whenever I open it, I get lots of erros like : java.lang.InternalError: not implemented yet at sun.awt.X11SurfaceDate.getRaster(X11SurfaceData.java:155) at ... at java.awt.EventDispatchThread.pumpOneEventForHierarchy(EventDispatchThread.java:197) Does anyone have an Idea how to solve this ? The system is running RedHat 8.0. Sincerely, Stefan Joeres -- Dipl.-Ing. Stefan Joeres Lehrstuhl für Integrierte Analogschaltungen RWTH Aachen Sommerfeldstr. 24 D-52074 Aachen Tel: +49-241-8027752 (office) Fax: +49-241-8022199