Adobe Photoshop CS2 does not accept correct activation codes after virtualisation

Hi,

i thinapped Adobe Photoshop CS2 on Win-XP SP2 for testing purposes.

i tried different scenarios:

real win xp machine, virtual xp machine,  vmplayer, vmworkstation,

when i start the virtualised photoshop,  i get always a message to reactivate it because the license files are invalid, (but my activation codes are correct)

i enter the activation code again, but photoshop does not accept it.

thanks for any help

a.