By the way, for those that saw my previus threads a few weeks ago, I actually ended up stripping all the ol tiles off the walls, so i am tiling onto a bare plastered wall now. The old tiles were held on with a thick blob of adhesive in each corner and were tiled over wallpaper. They seemed strong enough before I took the bath out but once that came out it became clear that they were bodged. Took me no time at all to get them all off, most came off whole and in strips as they were on the wall, held together by the grout!!! Oh well, made my job easier, now I can do a proper job hopefully!