I bought the DDJ-SZ and it came with a voucher for Serato Video.
The Voucher worked just fine. Now when I entered the serial number into Serato DJ under Expansion Packs the okay button will not light up. I entered it just right. I even entered it six or seven times and nothing. I also quit Serato and tried again. The number is right I nearly have it memorized, so I'm not sure what the deal is? It's almost as if there is a character missing or something but it is not. Anyone else have this problem? Any other ideas?

Thanks,
Brian