>Depending on the value of the field to which the check box is "bound" it is enabled or disabled. The problem is that when it is disabled the Caption is barely readable. Looks kind of blurry.
>
>>That could confuse the user. The disabled looks says "I'm disabled. You can't click me".
>>
>>What condition has to change to enable the checkbox?
>>
>>>Is there a way to make the caption of a checkbox that has property .Enabled set to .F. appear normal/enabled?

Returning .f. in the When event has the same effect as disabling. And you can use any color combination you choose to indicate that the control is disabled.