Thanks Kelly,
Just to clarify, I am not trying to set a default value, the problem at 2.3 is that a default value is automatically being set to 1970 for date fields. This did not happen at 2.2.
If the behaviour of the date fields can be restored to how it behaves at 2.2 then that would be great. Basically a null date value should not default to ANYTHING, let alone a random date of 1970, it should remain null until the user decides to input a date - and then the date picker should open on today's date for convenience. This is how it worked at 2.2.
Thanks again for your help,
Mark.