Mayhem

Hi Guys, I'm trying to generate a title sequence of; 1 line, 2nd line fades in below 1st line, 3rd line fades in below 1st & 2nd 3rd lines, Etc, Etc. I started off with all the lines, duplicated the Text clip, reducing the lines one by one for each subsequent clip. Trouble is the text moves slightly up/down the page and so doesn't align properly. Any clues as to why? Or should I be doing it a different way? Thanks Chaps!