RPC service termination?

>-----Original Message-----
>My NT Auth/System is shutting down on a regular basis
>with a sixty second warning to close all programs. The
>reason listed is: Remote Procedure Call(RPC) service
>terminated unexpectedly.
>
>Can anyone give me a clue? I have a window popping up
at
>startup that tries to connect me to the web to the
>following address: gatorcme.gator.com.
>.
>