Do you know the offical rule when to use ON and when to use IN. I was corrected today on the following sentence: "Put the file on semi-automatic mode" (this is a computer system file). Someone corrected me saying that I should use IN semi.... and couldn't explain why. I disagreed because I basically learned the expression as "jargon" at work and this person couldn't explain me why except to say he was right and I was wrong. Another came along and said because it is a computer file, you have to put the code IN the system (which makes sence). But what I really want to know is, was I that wrong???
Sincerely,
"Can't take too much criticism!!"
