i have just had a hardwood conservatory fitted and the wood was treated with a nice finish,however the plasterers have come in and plastered my walls and also covered alot of the wood.i've removed the bulk of the plaster by carefully scraping and brushing with a soft brush but it has still left plaster in the wood grain .anyone know of any 'miracle' solutions that won't damage the wood finish or have i just got to brush away forever until it all comes out? any advice much appreciated.