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Welcome to Mint napels7
The computer God wanted this
Seriously, Mint is based on Ubuntu and for some reason (probably spelled config file) there is a reference to the wrong splashscreen in a config file.
But why? I'm sorry but I don't know - it sounds as one of these freak events that just happens....
I have made a note and will try to find out a solution
Don't fix it if it ain't broken, don't break it if you can't fix it