form_checkbox doesn't check the box when updating the DB

Hello,

Simple questions...
- What do you get when you print_r/var_dump ($lottery->extra_ball) after the database has been updated ? 1 ? You say the record has been saved successfully in database, but is it sent back to the view correctly ?
- Did you try not using special chars in your label "Extra / Bonus Ball?" ? Because when I look at your code, this is the only difference I see. Might be interesting to try, even though the probability is very very low, you have to check everything.