I seem to have the same problem Claire had (ref. the use of Eco paint stripper on your site). In my case, there is heavy wallpaper that is dry and coming away in places and I know that I will be left with a mixture of bare platerboard (fawn colour), flaking emulsion and possibly some "sound" emulsion. Other sites seem to say avoid using such products on plasterboard as it would go soggy. I intend to paint the walls from now on with emulsion. Advice gratefully received.