Shouldn't be a waste,

Try one of the Knoppix boot cheatcodes, English, and a whole slew of languages, are usually included with all of the distro's...

You might try boot: knoppix lang=en or boot: knoppix lang=us

Don't enter the "boot:" that is the prompt during boot-up, I prefere, and have found, a majority of the time the "us" works, even though a lot of times the F2 screen never shows it.

Hope this helps,
Cuddles