old News but.....
 

Tried Microfibre cloth per previous threads - wow really work just wipe the dash and off it comes - good for tv and Hi-fi as well
Bought five off e-bay from perforemance motorcare poroducts top deal and prompt service also - www.Performancemotorcare.co.uk

worth a try if you have not used one - plus of course the dreaded lint residue does not happen

Mark