Since it has been three years and since you've done absolutely nothing with the card, rather than letting it sit in a dark closet for all of eternity, I would suggest you consider one of two courses of action. You could consider building your own grayscale card to see if it would function properly with your PDS video card, giving you internal grayscale on SE/30. The second alternate is for you to part with the card; although the value of the card would be lower than one fully tested and known to actually function perfectly.