Form checkboxes grey instead of white?

[pat_nospam]

When I start a new record, most of my forms that have checkboxes will suddenly turn white, waiting for a "check". But I do have one misbehaving form that 75% of the boxes will turn white/empty, while 25% remain sort of grayed out..

Any ideas?

 

[pat_nospam]

For example, this is a screenshot of the boxes after checking one of them, half are grey, half are white.

 

[Pat Hartman]

The ones that are gray are null. If you want the box to default to No, change the table definition. Then run an update query to change all the null values to No.