Frequently Asked Questions

Rendering problems can be caused by either the display driver or the Java environment. If these problems are not solved by installing the latest version of the display driver or of Java, please try the following option:
-Dsun.java2d.noddraw=true

Example: How to add this option in astah start-up batch file

1. Open the Astah start-up batch file (astah-pro.bat, astah-uml.bat, astah.bat, etc.) with text editor. You will find the batch file in Astah install folder.
2. Add "-Dsun.java2d.noddraw=true" option to the following line.
   i.e.: set JAVA_OPTS=%JAVA_OPTS% -Dsun.java2d.noddraw=true
   start javaw %JAVA_OPTS% -jar ʺ%ASTAH_HOME%\%ASTAH_JAR%ʺ %1 %2 %3

Version 6.6 or later in Windows

1. Open the .ini file (astah-pro.l4j, astah-uml.l4j, astah.l4j etc) with text editor. You will find it in Astah install folder.
2. Add "-Dsun.java2d.noddraw=true". If it is already in with "#" at the beginning. Remove the "#" and save the file.