SSO Fails on XP SP2

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Dear all

I don't know whether or not I should post this here or in
comp.kerberos but I will do both.
After successfully implementing a cross realm trust between AD and a
UNIX realm, it seems that the clients that user SP1 can successfully
have SSO to the UNIX machine whereas the SP2 people can't. Can anyone
help me out, since I am not a Windows expert :-)
The tool I use for SSO on the Windows clients is Vintella Putty 0.60
q1.129.

Kind regards

Miguel

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