Empty desktop

Windows NT 4.0 Server SP6
256 mg memory
40 gig HD

Had to change the domain name on a server (hacker problems). Server boots fine but will not display the desktop. No start menu. At the desktop I can see the mouse pointer and move it around. An error box is displayed with the title “Desktop” by a red X. This is the message:

Can’t access this folder
/path too long

Closing the error diolge box simply leaves me with the mouse pointer and desktop with no icons.

How can I access my desktop icons?
Also mapping a drive from another server in the same domain to this machine gives an error.