Check/change your java version

First you will have to check what current version of java you are running. You can do this by opening the terminal (ctrl + space and use spotlight to search for terminal). When the terminal opens you write java -version and press enter. Your configuration should look like the picture and display that you are running 1.6.0.

But if for some reason you are not running the newest version of java this is very simple to change. Go to spotlight again (ctrl + space) and type java. You should then get a few alternatives to choose from. Choose the one that is called java-preferences or java-inställningar like it says in swedish. Choose to start that application.

This is the view of my java-preferences and this is the way it should look like. If it does not look like this just drag the line that says Java SE 6 above the other ones. Do this in both lists (applet & program). If Java SE 6 does not display in you list, it means that you have not got it installed - it is as simple as that :) Nice guy that i am, I will also contribute with the URL to download the mac update of java.

Java for Mac OS X 10.5 Update 1 (includes Java SE 6)

After you have installed this update you should be able to se Java SE 6 in you java-preferences app. Just make sure it displays on the top of both lists. Restart the terminal (ctrl + q quit it to be sure) and typ java -version again. If it does not display the right config now you have done something wrong, meening you kinda suck since this is very easy to do :) Try using google to fix it if this is to hard for you.

Cheers