Date: 2/21/2009 5:05 pm EDT
A tile floor installation should NEVER be grouted at the walls. Tile floors require room for expansion.
In your case the tiles should be cut neatly at the walls leaving a gap of 1/8" to 3/16" and then "caulked" with a grout-matching caulk. Matching caulks (within reason) are available to match most any color grout available.