Thanks Les. Hope using 3.63 isn't the solution though. I don't want to lose my UDF's and all else good that comes with 4.22. We have another NT resource domain that used to have NT workstations (they've since moved to the AD domain) and we never saw the problem there. But there are many differences that may cause one to have the problem and the other to not have it, like a 2-way trust, using different DNS, etc.