The first advice is always to reboot.
The second question is server status. Look the servers up here:
http://fah-web.stanford.edu/serverstat.html
It looks like the server that you connect for that WU was down, but is now up and running.
Also if you look at the Extreme Overclocking stats, you will see several 3 hour segments where none or few points were posted. It happens that their servers go down, get bogged down or have network connection issues.
http://folding.extremeoverclocking.com/team_summary.php?s=&t=36120
It is still not communicating. I notice the two servers I am trying to reach have a status of 'full'. If it means the obvious then I understand the problem.
My folding app (5.03 windows, running on XP pro) has taken to shutting itself down. It will not stay running until I reinstall it. I don't delete the old one, just install over it and I notice I don't lose the wu in process.
I noticed in the posts that you can set a cap on processing power so I set it at 80 since it was running at 98 most of the time. Still 'low' priority so it wasn't in the way most of the time. It does not pay any attention to the setting though and continues to use all available cycles.
I do have the intel MB monitor so I get alerts if overtemp and so far no problem. It would be good to have a little headroom though because sometimes it is slower when FAH is being greedy.