Login screen loads a very long time occasionally. It's annoying to wait for 5 minutes just to be able to use the MacBook. I have not been able to find a reason why it sometimes takes a very long time and sometimes loads instantly.
I have a MacBook Pro with in OSX 10.6.6 and Active Directory corporate Windows network controlled username and password. I also use a setting that requires password login after 15 minutes of sleep or screensaver in case I forget my laptop on a train or something.
What can be done to solve this issue?