When I first installed jive_messenger_2_1_2,it worked very well,then, I tried to uninstall it and install again,but I got this error:No JVM Could be found on you system. Please define EXE4J_JAVA_HOME to point to a installed JDK or JRE
We’‘re now using an updated version of the installer that we hope will fix these types of issues. I made a daily build of the 2.1.3 beta exe yesterday if you’‘d like to try it out – you can find it in the nightly builds. Otherwise, i’'d recommend trying to totally delete the Jive Messenger directory in Program Files before installing again.