From the IB web site TWS Beta Release Notes
Upgrade Java to 5.0 by January 1, 2008
Please note that effective January 1, 2008, TWS will only run on Java 5.0 or higher. If you have not upgraded yet, from now through the end of the year you will receive a message when you log in encouraging you to upgrade before this cutoff date. Also, if you are running a version of Java lower than 1.4, TWS will require you to update before you can log in.
I'm sure they will fix the minimum requirements info to correct the 1.4 info currently there.
Jack
Upgrade Java to 5.0 by January 1, 2008
Please note that effective January 1, 2008, TWS will only run on Java 5.0 or higher. If you have not upgraded yet, from now through the end of the year you will receive a message when you log in encouraging you to upgrade before this cutoff date. Also, if you are running a version of Java lower than 1.4, TWS will require you to update before you can log in.
I'm sure they will fix the minimum requirements info to correct the 1.4 info currently there.
Jack