Another thing that's confusing is the Java entries in Add/Remove Programs. Which of the following should I uninstall? All of them? Is there one I'm missing here? Here's my complete list at the moment:

- J2SE Runtime Environment 5.0 Update 10
- J2SE Runtime Environment 5.0 Update 11
- J2SE Runtime Environment 5.0 Update 9
- Java(TM) 6 Update 19
- Java(TM) 6 Update 2
- Java(TM) 6 Update 3
- Java(TM) 6 Update 5
- Java(TM) 6 Update 7