My old PC died, so I bought a new PC.
I tried to re-install my chess softwares on the new PC.
I successfully re-installed Komodo 8 as well as Houdini 3 and activated them with my serial numbers. They work perfectly.
But there is a problem for ChessBase 12. I re-installed it successfully, but when I try to activate it with my serial number (File > Activation > Activate) it doesn't work.
Here is a screenshot of the problem:
So apparently "ChessProgram 13/14", "Engine: Houdini 3 Pro" and "Engine: Invalid" (no idea what "invalid" means) have been activated successfully.
But "CBase 12" (ChessBase 12) was not activated successfully.
I have re-tried to activate it many times, but each time the message says "SerialNumber already used", and then it also says "You can now open database files by double-clicking them in Windows". And "CBase 12" stays at "No".
So how do I solve this problem?
And don't answer me "buy another ChessBase serial number"... I have already bought ChessBase a few months ago, it costed a lot of money (around €370 I think), and I don't want to lose even more money...