When logging in is the network port on the machine showing a lot of traffic? IE is there a lot of data being passed or is the login just timing out?
Does this issue continue when the user is logging in on a different machine?
One good reason for inordinately long logons can be if the user is using a roaming profile; as far as I know, the contents of 'My Documents' is also transmitted across the network with each logon/off...
Hope this helps, let us know!
Terry-Lee Blay
MCP, A+, Net+, Server+, APS, IBM Thinkpads/Portables