Try typing the following point separated value in a datebox component:
10.11.11 (loosing focus returns correctly the value 10 NOV 2011)

Now change the value to something like:
10.12.11

You will notice that the date is not parsed correctly.

Take care that if you use 1-digit day (eg '9.11.11' and then change to '9.12.11') it works fine!