Checkbox loses checked value in view, Edit mode

Hi,

I have created a group of checkboxes wich the editors can check if wanted. My problem is that when a editor checkes for example:

• check box A and check box B
• publish it
• goes back to the page in Edit mode. Now the check boxes lookes unchecked but the values are correct in the db and the application returns the right values according to the checked values. It just lookes unchecked in EpiServer Edit mode when in fact they are checked.

Does anyone know what I h ave missed or what I can do so that it in EPiServer shows the right status of the checkboxes?

I'm using the SelectMany attribute of EPiServer on my property holding the check boxes.