I couldn't get my 2.44 to work after an upgrade recently. Most frustrating. I got the same Java errors posted here previously, but renaming files didn't work at all. Every time I started the program, it would pause the cursor and dump out again. It was as if I had never even tried to start the program.

Uninstall and reinstall LimeWire didn't do the job. Uninstalling keeps the Java plugins intact. It's those that were causing the problem for me. Each time I had upgraded, a new version of Java was installed as well. I had three separate versions listed!

Uninstalling Java, one at a time, then LimeWire itself, then reinstalling from a fresh download of 2.44 did the trick. It forced a download of the current Java files that were compatible with 2.44 and re-established all the library links.

It worked for me, but that's just one computer. Your mileage may vary.

-Flinthoof