I recently remodelled my shower (new layout, tile, etc) in my bathroom.
http://www.rapture.org/shower/006.jpg

After having the glass put up, I noticed on the right side the grout was
cracking around tiles which touched the glass. Specifically, the area you
see right he
http://www.rapture.org/shower/010.jpg

It was in a traffic area and it was bad enough where I had to bring out a
professional. Before the contractor could work, I had the surrounding glass
removed. The contractor didn't do a perfect job (not nearly good enough for
$450), but I just want to get this over with. Anyway, now I noticed
cracking on tile on the outside in a totally non-traffic area, such as this:

http://www.rapture.org/shower/001.jpg
http://www.rapture.org/shower/012.jpg (zoomed out, can't really see it in a
picture)

The inside of the shower, there are no cracks on the tile grout. My
question is, can I just fix this grout without having to remove the glass &
tiles? For example, just scrape the grout out and put more in? I don't know
what the deal is with the grout cracking, especially in areas which get no
traffic like that. But I've spent way over my budget on this bathroom and I
want to get it over with.

Thanks