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SudokuGuru's FAQ's                 

Why do I get a message "Activation code is out of date" when I try to activate the SudokuGuru program?

The activation code will only work if it is used within 2-3 days of when it is issued.  If, for any reason, it takes longer than this for you to use it then you will get the "out of date" message and the code will not work.  Another code can obtained by entering your eMail address here.

Why do I get a message "Activation code does not match eMail address" when I try to activate the SudokuGuru program?

Please check that you are using the correct eMail address.  If you paid by PayPal then you need to use the address used by your PayPal account.  If you paid by credit/debit card then you need to use the address you entered along with your card details.


I have already entered my activation code and, although it worked at first, it doesn't seem to be working any more!

An activated version of the SudokuGuru program will reset itself to the demo version if some of the hardware or software settings of your computer are changed.  Another code can obtained by entering your eMail address here.