Windows network profile corrupt?

I have a user that when he logs onto his machine it takes quite a bit of time for it to get past the Welcome screen but when it gets past that screen it goes to a black window with the mouse cursor in the middle. I thought this was an issue with his profile on his machine which I deleted and removed from the registry yet when he logs he gets the same issue.

I built a new machine for him and added it to our domain but when I log onto the new computer with his credentials I get the same issue. Very odd. What might be the problem? I have never seen an issue like this before.

We are on a windows 2008 domain but was recently converted from a windows 2003 domain.
TimSr. System AdminAsked:
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Will SzymkowskiSenior Solution ArchitectCommented:
Does this happen for any other profile on this computer? What i would do is check and make sure that there are no specific wall paper profiles that are tied to this users account. If there are this might be why you are getting this black screen.

Thomas GrassiSystems AdministratorCommented:
Do you use a gpo?

Try excluding this from the gpo

See if that helps
Spike99On-Site IT TechnicianCommented:
Does the profile ever finish loading if you let it just sit? It could be that it's just taking a long time to load the profile.

I've seen this kind of thing before.  Some of the folders in a roaming profile can get to be very large.  But, it's more than just size. Even if the overall size of the roaming profile isn't huge having a ton of files in the profile can also significantly slow down log on times.

The culprit in the situation I had before was the Cookies folder. When loading a user's profile, the server needs to compare each file in the network profile with ones that already exist in the user's local profile.  So, even though cookies are really small files, if the server needs to compare 8,000 or 10,000 files, it will take some time to complete that task.  If that's the case for your user, I would just delete them.

Cookies are in the Roaming portion of the profile in this path:

To resolve this issue for several of our users, we gave them a batch file.  We told them to run that when their log on time got slow again. But, if that didn't fix it, they should call us.

If I recall, that BAT file went something like this:
del /f /s /q "%USERPROFILE%\AppData\Roaming\Microsoft\Windows\Cookies\*.*"
del /f /s/ /q \\server_name\profile_share\%username%\Appdata\Microsoft\Windows\COOKIES\*.*

Or, you could run a GPO to redirect cookies to the user's home folder on the network or to exclude that folder from the roaming profile.

This page has some screenshots on how to set up folder redirection for the cookies & favorites folders:

This forum posting discusses excluding the cookies folder from the roaming profile:

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