WinXP Pro using Temporary TSCAL

Hello,

For some reason, unknown to me, one of my client machines is using a
temporary TSCAL, which I've found out is going to expire tomorrow. (I love
how users always leave stuff to the last minute...)
The machine is running Windows XP Pro, so it should have a permanent
license, and to confuse the matter further, when I looked around in TS
Licensing, it shows that there are 3 permanent licenses named after the
machine in question. The KB says this may result from cloning the machine,
and the clones not "actually" having different names, but that is not the
reason because this machine has NEVER been cloned.

Any assistance would be great!
Thanks,

Clint McGuire