DataGridView not display a bit field?

I have a DataGridView in a Windows app. Two of the columns hold data from a column in the database which is defined as a bit datatype. My problem is when the DGV is bound to the BindingSource, the bit data doesn't show. I'm thinking by default it should be displayed as 1' and 0's but nothing is displayed. Is there a way to modify the DGV Column? If so, how would I define a column that holds bit data?

Thanks,