We found a similar case when working on our MAC OSX servers. The issue is caused by Apple’s Quartz Renderer when using RichFaces. (reference -> http://www.davidsalter.co.uk/blog/) To get around this problem we added the following line to the run.conf file of JBoss AS to tell the JVM not to use Apple's Quartz Renderer : JAVA_OPTS="$JAVA_OPTS -Dapple.awt.graphics.UseQuartz=false" In our case this worked. -Nishant View the original post : http://www.jboss.org/index.html?module=bb&op=viewtopic&p=4253656#... Reply to the post : http://www.jboss.org/index.html?module=bb&op=posting&mode=reply&a...