RotorPilot,
I've found the performance to be pretty stellar since the upgrade... very fast and efficient. I haven't seen any busy error messages, yet. If you connect via a network at work that uses an internal DNS server, it probably hasn't been updated through the normal propogation referenced earlier (via the public Internet). To ensure you have fresh domain name resolution information, perform the following steps...
Windows 2000 or Windows XP...
START
RUN
Type "cmd"
Press ENTER on your keyboard
A new MS-DOS window will appear
Inside that window, type the following...
IPCONFIG /FLUSHDNS
Press ENTER
Close all windows
This will clear any cached DNS information that you had on your system that was previously provided by your local DNS server. As a result, when you go to the PPRuNe website, it will be forced to get updated information from an external, publically accessible, DNS server.
If this doesn't work, send me a PM and I'll schedule a remote support desktop session with you to help resolve your current performance dilema.
R2