Mandrake 9 Java 1.4.1 and Studio One Update 1

[Will Macdonald]

Hi,
I am making my first steps into the world of Java. An experienced Java coder I know said the best 'environment' to use is Sun's Forte.
I am using Mandrake 9, Java 1.4.1 and Studio 4 update 1.
I have Java installed and it appears to work. I can run Limewire OK, and when I type 'which java' I get:

/usr/java/j2sdk1.4.1_01/bin/java 

However when I try and install & run Studio One update 1 it fails.
I tried with this command:

java -jar /home/will/Desktop/ffj_ce_en.jar

It open up a dialogue box, and briefly mentions 'Starting Installer', or something similar. It then waits with no error messages. I have tried this as root and my own username but same result.
Can some one tell me what is going wrong ? Is this something to do with gcc 3.2 ?, or should I use an older version of java/forte ?
Thanks in advance for any help,
Will

[Will Macdonald]

OK, I just installed Java 1.4.0_02 and the installer DOES work.