When the tile butts up against the shower enclosure, the grout has cracked, separated, pulled away -- not sure what you call it. I posted pictures of it on my flickr page, you can see them here:
What I THINK is happening is that the shower enclosure "flexes" slightly when people use it (it is used rarely, btw) and it has caused the "inflexible grout" to crack.
Any thoughts about a solution? Obviously, I guess I could try to chip out the loose grout and put in more grout, but I think I'll have the same problem. Alternatively, would some sort of caulking work?
I'm pretty much unskilled in this "field" -- in other words have no idea what I am talking about. Any thoughts?