Dear readers,
I too have pulled my hair out attempting to get my version to locate Mcnaught. It is actually more simple than you can imagine..
In FIND, put in McNaught, watch your capitalization.
Mcnaught will not locate more than 3 comets, but McNaught instantly locates P1. Look through your Comets.txt file, use search. You will quickly see that Mcnaught locates nothing, but McNaught locates what you have been looking for.
Hope this helps..