What game are you using? Are you using Stepmania 3.9, 4.0, or something else? Also, are you currently using the default theme?
If you're using Stepmania 3.9 and the default theme then you should see what I described. If you don't, it could be a problem with the theme you're using. But if you're using something other than Stepmania 3.9 then, unfortunately, I can't help you.
Also, just in case you don't know, this theme is for Stepmania 3.9 so if you're using 4.0 it might not work.