I have a textbox with value that stores ValidFrom form value:
31.01.2012
and cultures set to:
As far as I know the culture info is loaded directly from the OS ( in this case windows), you can check on your regional setting for the format specified. This is a screenshot from my pc:
http://imageshack.us/photo/my-images/96/engbg.png/
As you can see the format for short date is: dd/MM/aa, so maybe there is something going on with your server regional settings or the input should be: 31/01/12 instead of 31.01.2012
Hope this helps.