Here is the error when I run dcdiag...
A warning event occurred. EventID: 0x00009016
Time Generated: 04/22/2011 22:16:51
No suitable default server credential exists on this system. This will prevent server applications that expect to make use of the system default credentials from accepting SSL connections. An example of such an application is the directory server. Applications that manage their own credentials, such as the internet information server, are not affected by this.
How do I fix this problem?