Admin name doesn’t show up on comments

My name isn’t showing up on comments I make on my own WordPress installations. The names of all the other commenters show up, but not mine. My name does appear when I view the comments when logged in, but when I’m not logged in, there is nothing where my name should be. I have had this problem with the only 2 themes I have used so far (I am currently using the K2/Vader theme). Thanks!