I have the following JDKs installed: diablo-jdk-1.3.1.0 jdk-1.3.1p8_2 jdk-nodebug-1.4.1p4 linux-blackdown-jdk-1.3.1_2 linux-sun-jdk-1.4.2.01_3 Given I also have mozilla-1.6_2,2 and openoffice-1.1.0_1, which ones can I remove and which of the rest can be upgraded? Robert Huff