If you encounter xp shows up only wallpaper and mouse pointer after logging into "domain", and still you could press ctrl-shift-esc get into task manager... then you are not totally out of luck.
Try logout and login into administrator (local-pc) instead of domain. Observe whether it could goes into desktop. If yes, then most likely the user profile for the domain is corrupted.
What you can do is, with the local-pc administrator rights logged on, goes to c:\documents and settings folder, copy the corrupted user folder as backup. If you failed to copy some of the files indicated that it was in use. Then you may have to reboot it to safe mode to do it.
After copy into backup, remove all files and folder inside the corrupted user folder. Then reboot and login into domain with the same username and password. It will recreate all the necessary files upon login to windows. Try reboot a few more times to confirm the login can successfully goes into windows.
Then copy necessary files from the backup folder (such as bookmarks, desktop files, application data, local settings) back to the user folder. You may want to pick only necessary files to restore because most likely files from application data or local settings that would cause the explorer from loading properly. *** DO NOT COPY NTUSER.DAT, NTUSER.DAT.LOG & NTUSER.INI file.
The summary for the remedy:
1) login to domain
2) explorer fail to load desktop and taskbar
3) get into task manager by pressing alt-ctrl-del or ctrl-shift-esc
4) logoff current domain and login to local-pc administrator
5) backup contains from the corrupt domain user folder in c:\documents and settings
6) remove all files and folder in corrupt domain user folder
7) reboot and login with domain user
8) after confirm can goes into explorer after login, copy all necessary files back to the locations.
9) you may need to setup Outlook email and other settings after copy all the files back into the user.
Good luck
