"Jill" wrote in message
...
The grout aroudn the tile in the shower/tub stall is cracking. The bottom
parts are worse, and there are hairline cracks about half way up. We moved
into this house in December, and there was no cracking then.

There us one small bit where the grout fell off, and the crack was filled
with silicone beneath.

When we moved it, we found grout patch and silicone in a box. I wonder if
there was damage that they just covered up.

What is my next step? Do I need to pull down the tiles?

In spite of what some told you, you have a major problem. If the joints were
solid 8 months ago and now they are cracked open everywhere, and on top of
that you discovered silicone in one of the joints that came loose, my bet is
the support behind the tile is wet - maybe rotted, and another patch will be
just that - a patch.

Tom J