Java Security

Hello,
When I switch to using "setNeedClientAuth" to true on the end of the server the socket fails to connect. The error message that I get is "fatal handshake failure, no cipher suites in common". When I do not require client authentication, the program runs fine.
I created my own key using the RSA algorithem (as specified in other postings) using keytool. This does not help.
I've noticed that alot of the posts related to this don't seem to get answered.
If I cannot get client authentication to work correctly, then this security extension is worthless to me.
Dan Hughes