Hi,
I had the same problem and this method usually works. When you run Gnucleus, go to preferences before it crashes. Disable "Connect automatically at startup" and reduce the number of min and max connections to 1 or 2. Then run Gnucleus again. Connect by clicking to "Add" button and then increase the numbers of min and max connections slowly.
Gnucleus used to crash at startup every time I run it, and I was able to run it with this method. Just give it a try.
If this hint is useful, please read my question at the follwing link and please help me if you know about it.
http://www.gnutellaforums.com/showth...&threadid=5126
Thank you.
Solid