193In This ChapterJava Runtime Environment (JRE) .........................................................193IPv6 Support Notes ...............................................................................194Keyboard, Video and Mouse Notes .......................................................194CC-SG Notes .........................................................................................196Java Runtime Environment (JRE)Important: It is recommended that you disable Java™ caching andclear the Java cache. Please refer to your Java documentation orthe KVM and Serial Access Clients Guide for more information.The LX, KX II, KX II-101 and KX II-101-V2 Remote Console and MPCrequire the Java Runtime Environment™ (JRE™) to function since theRemote Console checks the Java version. If the version is incorrect oroutdated, you will be prompted to download a compatible version.Raritan recommends using JRE version 1.7 for optimum performance,but the Remote Console and MPC function with JRE version 1.6.x andlater with the exception of 1.6.2.Note: In order for multi-language keyboards to work in the LX, KX II, KXII-101 and KX II-101-V2 Remote Consoles and Virtual KVM Client, installthe multi-language version of JRE.Appendix D Informational Notes