About 10 days ago my java software was updated from 1.5.0 update 12 to 1.6.0 update 2. Thought nothing of it. Two days ago I tried to bring-up LimeWire without suggess. Sent the error message to Sun. Found out that when the update occurred, the old version was not completely replaced. I completely uninstalled/deleted both versions and reinstalled the 1.5.0 update 12 version. (Haven't tried reinstalling the update. Bad vibe's.) LimeWire is happy. I'm happy. LG
Java SE Downloads - Previous Release - JDK 5 for ver 1.5.0 update 12.

My problem, my fix. Hope it works for you.