seem to be somehing to do with IIS, i dunno anything about it but read some where.. like this..

A RPC error message is often the result of a slow network connection. But
you need to determine if that's the case. See Technet at
http://support.microsoft.com/support.../Q177/4/46.ASP Also does
your Event viewer report errors in your system or application log and if so,
which ones.