Where are you seeing old references?
When I run reports and in the inventory
Have you ran a full inventory scan on your systems to see if it updates. Make sure you do this with a domain user logged in.
Please post a full scan.
Ldiscn32.exe /o=c:\myscan.txt /F /SYNC
What values in the scan are wrong, if any.
If none are wrong, look at the inventory by double-clicking on the device in the console and look at any value that shows the Domain. Are any not updated?