This week's book giveaway is in the OCAJP 8 forum. We're giving away four copies of OCA Java SE 8 Programmer I Study Guide and have Edward Finegan & Robert Liguori on-line! See this thread for details.
We're running Windows 2008 R2, Tomcat 6, MS SQL 2005, JDK 6 update 20 and authenticating using AD from Windows 2003 R2 server.
The application we're using causes intermittent single sign-on errrors. We tried to upgrade to Tomcat 7 and the SSO errors went away, but the system was so slow it was unusable. Sometimes we get 8 SSO errors before we're able to use the system, but when it works it's very fast.