It looks like Java 1.4_01 broke something for Russell Beattie:
ARRRGGH. Java 1.4.1_01 broke the scroll wheel in JOE. WHY??!? Frigin’ Sun, will you please get your head out of your collective asses?
Thank goodness it’s OSS so I can go in and see what the problem is… it’s probably trying to use an old scrollwheel workaround for 1.3 and ignoring 1.4’s support for it. But still. UGH!!!