I have an issue which is quite new. I have Windows XP clients which after a
few successful offline logins from home over a few days, are now losing these
domain cached logins and can nolonger login.

As far as I can tell the only think I have applied is SP4 for client 4.91. We
are running Windows XP SP2.

Does anyone have any ideas if the new client could be doing this ? As there
are many options within the client.

Or if I should be looking at something within AD or Windows ?

Thanks for your help.