Always Test before Mass Update
Sometimes I forget with simple "Service Packs" of any program, that they all should get adequately tested before installing on a mass of computers. So, we have a user that was having serious issues that the rest of their team was not having on a 180mb Revit file. Even though none of this user's issues were on the fix list I had hoped that it would resolve some of the issues until we could get the user a new computer. After installing the Service Pack 2, the user would have Revit close (without warning or error report) when they would attemp a save to central command. I had to do a system restore because there was nothing I could alter on the machine that would allow the program to save to central. Luckily, since we are switching out hardware so that the users will have Vista 64bit with Revit 64, I only installed the Service Pack (Web Update) 2 on one computer.
Just a reminder that you should always test before installing on too many computers. I almost forgot and if we were not changing out hardware I would probably have suggested installing it on 50 computers. That would have been a headache!
This could have been a system issue so I am in no way suggesting that you not use the new Revit update.