I have a form, derived from a query, that includes text boxes for Begin Date, Begin Time and End Date, etc. When I enter a new Begin Date field and tab to the Begin Time field and enter a new time and tab to End Date the Begin Time reverts to 12/30/89. How can I prevent this. The same thing happens to End Time. The dates and time come from a Date/Time field in the queried table. The form field are faormatted to Short Date and Short Time, respectively.