I think this is normal if you're running different p2p apps, have a read of the threads below
http://www.gnutellaforums.com/showth...t+link+handler http://www.gnutellaforums.com/showth...t+link+handler
If you're concerned about Bearshare never being the default, post in the Bearshare forum & someone will be able to help you (I wouldn't know!)
