Changing Titlebar Text

Hi,

First of all, this theme has been great so far setting up my business's new website. Everything has been going well so far, but I have run into a little problem.

I want to change the titlebar text that shows up on archive/category pages. As of now it says, "(Category Name) Archive - (Site Name)".

All I want to do is take out the word "Archive". I've been trying everything I can think of, but I have yet to find something that will work. Unfortunately, I can't link to the site, because we are developing it on our server.

Thanks in advance!