Has anybody seen a case where Java's graphics performance is terrible until you launch NetMeeting? Simply launching and quitting NetMeeting is enough to fix it.
We're upgrading our JRE (to 1.6.0_12) in our enterprise and noticed an odd inconsistency. A small percentage of users have noticed that their repaint speed slows way down, to where it takes several seconds to repaint a moved window.
However, all you need to do is launch NetMeeting and quit it. That fixes it, at least until you launch a new Java app, where re-launching NetMeeting again fixes it.
We haven't tried something like 1.6.0_14 yet, as it breaks support certification on some other apps and is therefore not a generally acceptable solution. Also, we have not been able to discern any pattern amongst the machines that are affected. It's definitely machine-based and not user-based, as all users trying a "bad" machine see the problem...