the author link is usually in style.css.
there is another thought though.
there is a slight chance that your browser does not have the font – verdana – available from the theme’s font-family:
edit style.css and find quite at the beginning:
html, body{ padding:20px 0px 20px 0px; margin:0; text-align:center; font-family:verdana; font-size: 13px;}
try and extend the font-family declaration:
html, body{ padding:20px 0px 20px 0px; margin:0; text-align:center; font-family:verdana, arial, helvitica, sans-serif; font-size: 13px;}
with font-family, the browser would try to find the font installed on the computer, starting from the left in the list, and then fallback to a default font, which could be times in some browsers.
if you write a whole list into the font-family, you are giving a better choice to the browser, and you can build a kind of preference.
like: ‘if there is verdana, please use this; but my second choice is arial; and if everything fails, take a font from the generic sans-serifs.’