Authentication problem

I am having an issue, I have a user that can supposedly authneticate to our domain through his windows xp client but when he tries to browse the network ie map a network drive or a printer they will not show up in the AD. Here is the funny part. If I use explorer I can see all the domains in my network but I still cannot browse. I looked int he local event log and there is a mess of userenv errors w/ ID 1006 something about invalid credentials....Help please

try this from the problem pc. net view \\servername. if you get error 5 this
is permission issue; if error 53, this is name resolution or connectivity
issue.

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"markvee" <anonymous@discussions.microsoft.com> wrote in message
news:A12A24B9-C717-43D0-BA37-F641DA026B36@microsoft.com...
>I am having an issue, I have a user that can supposedly authneticate to our
>domain through his windows xp client but when he tries to browse the
>network ie map a network drive or a printer they will not show up in the
>AD. Here is the funny part. If I use explorer I can see all the domains
>in my network but I still cannot browse. I looked int he local event log
>and there is a mess of userenv errors w/ ID 1006 something about invalid
>credentials....Help please