so, i need java 6 and the default install of fedora's java (not suns!!!) is 1.5. I installed java 1.6u3 and used alternatives to point everything: here's the jdk script I ran: cat jdkalternatives alternatives --install /usr/bin/javac javac /usr/java/jdk1.6.0_03/bin/javac 1603 --slave /usr/bin/jar jar /usr/java/jdk1.6.0_03/bin/jar --slave /usr/bin/appletviewer appletviewer /usr/java/jdk1.6.0_03/bin/appletviewer --slave /usr/bin/javadoc javadoc /usr/java/jdk1.6.0_03/bin/javadoc --slave /usr/bin/java_vm java_vm /usr/java/jdk1.6.0_03/jre/bin/java_vm --slave /usr/bin/javaws javaws /usr/java/jdk1.6.0_03/bin/javaws --slave /usr/bin/jarsigner jarsigner /usr/java/jdk1.6.0_03/bin/jarsigner --slave /usr/bin/javah javah /usr/java/jdk1.6.0_03/bin/javah --slave /usr/bin/rmic rmic /usr/java/jdk1.6.0_03/bin/rmic and the jre script: cat jrealternatives alternatives --install /usr/bin/java java /usr/java/jdk1.6.0_03/jre/bin/java 1602 --slave /usr/bin/keytool keytool /usr/java/jdk1.6.0_03/jre/bin/keytool --slave /usr/bin/rmiregistry rmiregistry /usr/java/jdk1.6.0_03/jre/bin/rmiregistry --slave /usr/bin/keytool keytool /usr/java/jdk1.6.0_03/jre/bin/keytool and most things run fine, but when trying to install any java application using a command something like this: java -jar jedit4.3pre11install.jar I get this error message: java: xcb_xlib.c:50: xcb_xlib_unlock: Assertion `c->xlib.lock' failed. Aborted anybody know what this means??? steve -- Steve Strong Math an Computer Science Washington High School 2205 Forest Dr. SE Cedar Rapids, IA 52402