Problem with serial number

Hi

I had registered my software and everything worked correctly.
After when I download and update to 1.8 version
Software want to be registered one more time.
I fits my serial number, my own original serial number
and this serial number dosen't work !

Screen of my problem here:

http://wrzucaj.net/NLM

Please help me !

Contact Akai about it directly, if its an authorisation problem they should be able to sort it easily.

i got the same problem with fresh install (mpc software 1.8 and 1.8.1 )