Friend had to reinstall the "Mac OS X install DVD" because she couldn't log in. After it installed, her stuff was all still in the computer, but now she has an "other" log in, which she can't actually log into. She can't figure out how to get rid of it or why it's there. She can log into her normal account again fine. Any ideas how to get rid of it, if it won't mess anything else up or delete any other info/data/apps?