I just created a new Group Policy Preference to install a shared printer on a certain computer using Item Level Targeting. I have been using this same system with great results in a different GPP. Ever since I enabled this new policy, group policy will not update. If I run gpupdate on my server, it just sits there and hangs. I have GP logging enabled, but it is difficult for me to decipher exactly what is going wrong by looking through the file. I even disabled the new GPP and ran gpupdate and I get the same result. I did forget to turn on loopback processing for the new policy, but don't know if that would cause this issue or not? Has anyone experienced this type of behavior before.