Hi,
I decided to try LyX out after using LaTeX for a couple of years. I
began with going through different tutorials and guides and found an
error in The LyX User's Guide coming with LyX version 1.5.1. The Guide
claims that inside a macro definition, a reference to a macro variable 1
is created by typing either "#1" or "math-macro-arg 1", but neither
seems to work. The former ends up in output file as just "#1", and the
latter (minibuffer command, I presume) is not recognised at all.
Experimentally I found that typing "\#1" produces the reference.
t. Otto Urpelainen