IDEA 9.0.2 Not Starting

Hi,

I have just done a fresh installation if IDEA 9.0.2 on my OS X 10.5.8 system. After dragging dragging the app to my applications folder I cannot start it. The icon appears for a split second and then disappears. No error message is displayed. Trying to run idea.sh from the bin folder produces the following error:

No JDK found to run IDEA. Please validate either IDEA_JDK or JDK_HOME points to valid JDK installation
./idea.sh: line 49: ./../bin/idea.vmoptions: No such file or directory
./idea.sh: line 67: /bin/java: No such file or directory
./idea.sh: line 67: exec: /bin/java: cannot execute: No such file or directory

Java applications can be started without issues. It seems that the IDE doesn't look in the OS X default location /Libraries/Java/Home.
Setting IDEA_JDK to JAVA_HOME in .bash_profile makes it possible to launch the IDE. However it behaves differently then I am used to: Settings are no longer saved in ~/Library/Application Support but in ~/.IntelliJIdea90. Application still cannot be lauched from applications folder.

I hope someone can help me with this issue.

Best,

Dirk Louwers