If you are certain that Canon IXUS 400 is nowhere on your list, and you have installed the profiles as per instructions, I can e mail you the profile because it is listed on my version. If you then put the e mailed profile in the same folder as you put the others then it will appear on your list afterwards. IM me an e amil address if you want me to send you the profile for Canon IXUS 400 it is a 16KB file.

And every one said, 'If we only live,
We too will go to sea in a Sieve,---
To the hills of the Chankly Bore!'
Far and few, far and few, Are the lands where the Jumblies live;
Their heads are green, and their hands are blue, And they went to sea in a Sieve.

Edward Lear
http://www.nonsenselit.org/Lear/ns/jumblies.html