sorry for the delay in replying, but I had trouble reverting to 3.8.6 (had to find and delete the "Install.LimeWire.pkg" bfore it could install). btw--for the latest build of LW that uses drag-and-drop instead of the regular installer, see here.

So, yes, I've tried 3.8.6 Pro and it works. Maybe the same trick will work for you. Search for file name contains "limew" and criteria->visibility = both in "everywhere" to find all the old LW pieces and to get a clean install.

Your specs look excellent, so I can't see any reason LW shouldn't work for you.

Hope that helps--do post back to let others know what works.

cheers