*sigh* just did the same with an DL165 G5.
The annoying thing is that it did accept the wrong ILO key, but the KVM feature is not activated.
Now the wrong key cannot be deleted.
Tried using the webinterface and by trying "set /map1 license=0" through telnet, without success.
Anyone got a solution, or at least know who to contact at HP?
The "E-mail HP for product support" does not even have the DL165 in the "select your product list".
And the "buy online" link to order the product is also still dead.