Problems under Citrix Presentation Server 4.0

[Belitski]

Hello,
I know, that this is probably not correct place for such a question.
Just in the hope, that somebody knows about similar problem and possible solution.
1. There are three Windows Server 2003 in the Domain. On all three there is an installation of our Delphi Application usind ODAC.
2. On all three servers, locally or over terminal client, the application works fine.
3. On all three servers there are identical Citrix installations (Citrix Presentation Server 4.0.0.65476), although there were at first two Citrix installations and later came the third one.
4. Under Citrix in the two-server-configuration over Citrix Web Publications everything worked fine.
5. After the third server was included, and creating a new publication for application on this third server (so, there are two published links now, one to the two old servers and one for the new one), the users have problems with profiles. On the application start first comes system message:

Windows was unable to load the registry. This is often caused by insufficient memory or insufficient security rights.
DETAIL - The configuration registry database is corrupt. for C:\Documents and Settings\witest\ntuser.dat
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

After that, two more messages, that are presented to the users:

Windows cannot load your profile because it may be corrupted. Contact your administrator.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Windows cannot find the local profile and is logging you on with a temporary profile. Changes you make to this profile will be lost when you log off.
For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

Both links bring the same error.
Any help is very appreciated.
Vladimir