Sorry for the delayed reply. Actually things look better on IE than on my Chrome on my Mac since at least it displays the regular Merriweather font instead of a default serif font of the browser like Chrome does. Looks like you have defined the font as something like this –
h1,h2,h3,h4,h5,h6 {font-family:"HelveticaNeue,Optima,Segoe,"Segoe UI",Candara,Calibri,Arial,sans-serif;";letter-spacing:1px;}
body{font-family:"HelveticaNeue,Optima,Segoe,"Segoe UI",Candara,Calibri,Arial,sans-serif;";}
You need to change it to make this valid CSS since the current definition is incorrect with double quotes spanning multiple fonts. Here is how it should be –
h1,h2,h3,h4,h5,h6 {font-family:"HelveticaNeue",Optima,Segoe,"Segoe UI",Candara,Calibri,Arial,sans-serif;letter-spacing:1px;}
body{font-family:"HelveticaNeue",Optima,Segoe,"Segoe UI",Candara,Calibri,Arial,sans-serif;}
I guess you have set it via Custom Font option. The value suppled is incorrect. Pls check.