We just installed Vista yesterday on a test PC. All seems to work well, except:
When using Windows Explorer to connect to Network File Servers, 2 out of 8 servers take very long to display the file listings. The other 6 display the contents very quickly.
DNS and WINS entries are correct. DNS Flush did not help. The slow servers are both 2003 (one is a file server, the other is our Exchange server). Two of the fast servers are also 2003. Our domain is still based on Win 2000. All updates are installed on the servers.
Pings to either IP-Adresses or DNS Names bring the same results, with all servers.