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Summary:
When Timetabling Solutions 10 desktop software cannot read the Short date format in Region settings a default Active to: date of 1899-12-30 (may differ depending on the short date format) will be displayed. Timetabling Solutions 10 will not be activated.
Cause:
The Region format has been set to English (United States) and the Short date is not set to dd/MM/yyyy.
Resolution:
1) Change the Short date format to dd/MM/yyyy.
2) Open Timetabling Solutions 10 and sign in if required.