I can confirm this on edgy. Using XGL and Sun Java5 the frostwire window is blank, but inside normal Xorg, there are no problems. This of course affects things like applets as well.
-- netbeans java app gui is blank in xgl and java5 https://launchpad.net/bugs/48404 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs