"Log in or register to post comment" button seems to be missing.

Hello,

This is actually by design.

Buttons with mixed content inside them, are meant not to show like a button. By mixed content I mean, it contains HTML. The reason I did this, is so when you have a plugin, that would not look good with the button background, like AddThis, you don't have to go through the trouble of disabling the button style because of it. Instead it just works. See screenshot.

If you wanted to change that and make it so that even mixed content links, like "Login or Register to post comments" and "AddThis," you could add this code in the appearance.css file:

.buttons div.button {
  background: #b3b3b3 url('../images/bg-shade-medium.png') repeat-x bottom left;
  color: #fff;
}

If you wanted to target the "Login or Register to post comments" specifically, then you would change the above to:

.buttons li.comment_forbidden div.button {
  background: #b3b3b3 url('../images/bg-shade-medium.png') repeat-x bottom left;
  color: #fff;
}

Hope that helps... :)

Is there any registration issue? I got registered only at a third time. It said that the regostration was disabled for some reason.
Well have to do my calculus homework for me right. Thanks in advance for solving the issue.