Windows XP cant join domain (box greyed out)

[Guest]

I am struggling to connect one laptop to our domain. Have connected over 20
desktops and laptops, but this one refuses.

The option to change either workgroup name or domain is greyed out - all
details there, just nothing can be changed.

Have complete administrator rights
Windows XP Professional
All updates - including network drivers
Clean of viruses and spyware
Flummuxed IT department and support contractors!

Any suggestions other than a clean install greatly appreciated

 

[Guest]

Active directoty probelms are often related to inability to locate or
identify the master server.

Check your TCP/IP settigns carefully, particulalry those relating to DNS.

If there is more than one network adapter, make sure that the one linking
the domain-controller is highest in the binding-order.

 

[Lanwench [MVP - Exchange]]

I am struggling to connect one laptop to our domain. Have connected
over 20 desktops and laptops, but this one refuses.

The option to change either workgroup name or domain is greyed out -
all details there, just nothing can be changed.

Have complete administrator rights
Windows XP Professional
All updates - including network drivers
Clean of viruses and spyware
Flummuxed IT department and support contractors!

Any suggestions other than a clean install greatly appreciated

Where has this laptop been? Meaning, was it on another domain previously?
Any funky policy settings? Event log errors?