We have upgraded our PDC NT4 to W2k and have upgraded our bdc's except for one. Everything worked great for a few months. We are starting to have permission problems now though. Possibly because we have put on 3 Windows XP computers on the network.
We are running WINS and DNS on our Primary Domain controller. The reason we are running WINS is because we still have W95 on the network. Not an urgent problem as long as it doesn't get worse. But it is strange why it started all of a sudden and as far as I know no-one changed anything except the XP.