Install MR 2010 License Key

Good afternoon,

We've installed MR 2010 Server and Client.  However when launching either Report Designer or Report Viewer we get a message saying our evaluation period for the software has expired and that we need to enter a new license key.  We've downloaded the new license key, but we have no idea where to enter it into MR or GP.

Can anyone please shed some light as to how to enter in the license key?

Any help is appreciated,

Thanks,

Roc