Thanks Joseph.. I have folllowed through to this link (http://linuxforums.org.uk/index.php?topic=11044.0
) that you gave me. I have checked the "Java" as suggested and this is my terminal reading.
harvey@harvey-MS-7529 ~ $ update-alternatives --display java
java - auto mode
link currently points to /usr/lib/jvm/java-7-openjdk-i386/jre/bin/java
/usr/lib/jvm/java-7-openjdk-i386/jre/bin/java - priority 1071
slave java.1.gz: /usr/lib/jvm/java-7-openjdk-i386/jre/man/man1/java.1.gz
Current 'best' version is '/usr/lib/jvm/java-7-openjdk-i386/jre/bin/java'.
So from this I feel as far as Java is concerned I should be O.K. This would be the one installed with the latest versions for JMRI.. I will check out the Yahoo JMRI User group and see if I can find something in those files.
Thanks for your help thus far.