Sprtiz the area with Pure, let stand for a few minutes, mirror slide.

If any stickiness remains, get a sheet of pallet wrap (the plastic that is used to hold boxes on pallets for shipping) and ball it up and wipe it across the affected area with your unit upside down on a styro head. The pallet wrap has a tackiness to it that grabs trapped adhesive. The mirror removes the bulk, the plastic removes the rest.

Hint- Normal kitchen wrap is not as effective.