Installing CS6 Design Standard Acrobat X Pro and activating offline, 32000+ days of trial

Hi!

Had problems with installing CS6 DS Acrobat X Pro while online.
(Serial keys not accepted.)

Had to also activate it offline.
(On offline activation the serial worked))

But now it said it was activated, but when starting Acrobat X Pro,

we get notification that we have 32000+ days left of our trial.

Every time we start Acrobat.

Does anyone know solution to this?