Can't authenticate PPTP to a Cisco VPN 3005

Archived from groups: comp.dcom.vpn (More info?)

I'm trying to connect to a Cisco 3005 using the Win2K builtin client.
Every time I try to authenticate, I get a message in the log saying
"invalid password", and "server = (none)".

Is there any way I can specify a server to use? What does "server =
(none)" mean, anyway? What's it using?

Unfortunately, although I know the Cisco client is easier to use, I
need to get the Win2K client working.

Thanks!