Birthday needs direct edit its gross trying to edit the entry for someone 80 years old or more. Produces debugging messages KDateTable::sizeHint: recommending 191x119 pixels. KDatePicker::sizeHint: recommending 194x146 pixels. KDateTable::sizeHint: recommending 191x119 pixels. KDatePicker::sizeHint: recommending 194x146 pixels.
This is fixed in 2.0rc1