*sigh* Well, I now know what was causing calibre to not display the arrows. My computer doesn't look like windows XP, or even Vista; no, if you'd have ever seen windows 7, you'd have seen it. I have a theme installed, through windowblinds, which is a themeing program, far beyond the capabilities of windows. I have a theme of windows 7. The program themes applications as well, and that was interfering, somehow.
I disable the themeing of calibre, and now the arrows show.
I'm kinda surprised that it was the theme interfering, though, as I have had problems with nothing before.
Anyway, thanks for finally making me realize what the problem was.
But I had another question, and could some kindhearted soul answer it for me please?