A few years ago we bought a house. One of the requirements was that the bathroom grout was redone. I have no idea who was hired by the former owner to do this but apparently they used the wrong kind of grout because now it is rubbing off! We had planned to have it redone when we had our tub re-enameled. (The tub looks great!) But we found out that the tile surround has problems -- it appears to have water damage, its a bit spongy; were the grout has worn away,it has some cracks; and we will most likely have to tear out the exterior wall and replace it and the tile. We think the drywall may be regular drywall and not greenboard. I have never done any remodling of the tile sort. My questions are these: 1) Is this a tough project for a newbee? 2) Do we have to tear out the tile on all three walls or just the wall we have to replace the wallboard on? (cause I am wondering if we need greenboard under all of the tile even if 2 of the three walls appear to have no damage) 3) If we decide to go with a vinyl surround instead of re-tiling, can we just go over the tile(even though we know the wall should be replaced?)? and last 4) If we decide to have this done for us and we go with replacing the wall board and new tile all around (nothing fancy), what kind of ballpark cost are we looking at?

hi i am redoing a neo-angle shower unit with durock (I have never done this before). the shower stall is made up of 4 walls and an opening that has a shower door. where the side-wall meets the door opening, there is an angle (i am guessing 30 degrees or so). i don't know how to make the corner with durock. at this point, i have the two walls durocked. one wall ends in a cut end and the other door opening ends in a seam joint. do i use corner bead on this joint? do they have to be perfectly flush (i think right now the seam joint stands a little proud of the cut panel). any advice welcome as i have no experience with durock and only a tiny amount with regular drywall.