3.08 cmdline client won't connect

on and off for the past 3 weeks or so, my client trys to send results
and fails, then then following message comes up

Sending result - connecting to server.
recv fd=64 n=-1, errno=2
Can't connect to server; will try again in an hour.

Seti@Home has been running on this box for about a year and a half.
1.6gb P4, Windows XP Pro, Norton Internet Security and Antivirus and
no problems on this end before now.

I downloaded and replaced the client. No change.

Anybody have any ideas?

Thanks!

Jim Wilson