Same issue for me with Mac OS X 10.5.2 version with Quicktime v7.4.1.
Limewire PRO (v 4.16) shuts down from itself one sec after it opens up.
Then message is prompted saying: "The application Limewire quit unexpectedly" with 3 choices: "Ignore", "report", "relaunch". If I choose "relaunch", same thing happens (shut don after one sec).

Anyone a solution in the meantime?
I'm really frustrated. Buying something and not being able to use it.

I tried to alow all connections and to remove all possible securities but it still doesn't work.

Thx