With Blackdown JDK 1.1x I could launch another java program with a GUI from Runtime.exec. It just works, first time. Now in JDK 1.2 it is more complicated: The exec environment now requires a "DISPLAY=localhost:0" The machine (Red Hat 5.1, Red Hat 6.0) needs xhost +localhost This works if booting at runlevel 3. If booting at runlevel 5 (ie xdm), the localhost X system refuses the connection. xhost has no effect, mkxauth -c localhost doesn't do it either. I don't know if this is Red Hat specific, i've only tried runlevel=5 on Red Hat 6. Any suggestions appreciated. Thanks, Jon. ---------------------------------------------------------------------- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]