Ok. So I mined this coined long long time ago. Then I kinda got our of crypto buisness. Been away so long  even bitointalk doesn't welcome me back. But I do still have MACs. Least I think I do/hope I do.

I still have my original wallet.dat file. But when I place it in the appropriate folder current machine pin wallet says something like. Recognized but not valid. (Not behind pc atm so I can't give exact message) think it has something o do with algo change / wallet updates?

Would be shame if I lost all my Mac's. Besides value it was and kinda still is my fav underground coin. Hope someone can help me out. Thanks