xhtml - CSS @font-face not working in ie

Question

I have the following CSS that works within Firefox but not IE. Obviously, the fonts are within the directory. Any suggestions?

@font-face {
    font-family: "Futura";
    src: url("../fonts/Futura_Medium_BT.eot"); /* IE */
    src: local("Futura"), url( "../fonts/Futura_Medium_BT.ttf" ) format("truetype"); /* non-IE */  
}

body nav {
    font-family: Futura,  Verdana, Arial, sans-serif;
    font-size:1.2em;
    height: 40px;
}

Answer 1

I read a lot of tutorials that suggested hacks, so I came up with this solution I think is better... It seems to work fine.

@font-face { 
    font-family: MyFont; src: url('myfont.ttf'); 
}
@font-face{ 
    font-family: MyFont_IE; src: url('myfont.eot'); 
}
.my_font{ 
    font-family: MyFont, MyFont_IE, Arial, Helvetica, sans-serif; 
}