Validating Windows XP - Aaargh

[kleanchap at tanucoo.com (Subba Rao)]

I have purchased an OEM copy of Windows XP Professional in US.  Now for
my job, I live in Europe.  When I bring up the XP system, I get the
message that it is not a valid copy of XP.  This problem did not exist
while in the US.  The Microsoft site is keeps me in a loop where it ends
up saying pay $$$.

Is there anyway out of this?  I do have the OEM manual with the key code
on it.

Thank you in advance for any help.

Regards,

Subba Rao