I am getting error 507: 'Value in field failed calculation test of validation entry option', this I get when I am moving t some layout with
Go to Layout 
One of the fields being displayed on the layout(s) has validation options that are not being fulfilled. Enter Layout Mode and change to one of the layouts that has the problem. Then, from the File menu, select "Manage Database" and look at the fields for the table the current layout uses. See if any of them have Validation turned on, and determine what calculation is being used to validate the data for each field.
This is not a quick process; be thorough and take your time. Post back with your results when complete.
Retrieving data ...