Invalid Dates

I am gettting a message to the effect that a date is invalid.

This is most likely due to the date format setting on your computer.

You may need to change the region and language settings of the computer.

1. Click on Start .
2. Click on Control Panel 
3. Click on Region and Language
4. Change Format: to English (Australia)
5. Change Short date: to dd/MM/yyyy
6. OK