When a multiple check button option or options is/are selected for an item, they only show as a hyphen - in the shopping cart.

I tried removing them and reinstalling them to no avail.

Drop down options work fine.

The only changes to my store in the last 6 months have been adding the image handler. I don't know if this was happening before or after the image handler module was installed. Could that be the cause? None of the options use images by the way.