Text Formatting ⇒ Spurious space at start of a parbox

[Bill_P]

Hi, I used to use LaTeX many moons ago, but lately I've succumbed to LibreOffice for most things, so I've forgotten much of what I used to know about.

I have a problem which LibreOffice doesn't seem to handle in the way I want - it's a church songbook, which was originally written using LaTeX, but other people took it over and used Word (ughh!) to rework it. I want to get it back into shape, and have managed to figure out a fair bit of LaTeX from my ancient User's Guide by Lesie Lamport, and the more up-to-date stuff on the web.
However, I now have a little problem that is stubborn and I can't fathom it out. I've cut out much of file, just leaving one song.
The Chorus we want in bold italic, and that's fine, but we'd like it indented. After trying various things I came up with an empty \hbox with width 5mm followed by a parbox. I did try using a minipage instead, but that does the same. The first line of the chorus comes up with a small indent. I've explicitly set \parindent to 0mm, and removed any surplus space in the source. How can I get rid of this little bit of space and make it line up with the lines below? If there's a better (easier) way to
get this section indented I'd be happy to adopt it?

Many thanks if you can help!