IE dropdown display wrong japaneese characters.

[echarish Kumar]

i have a problem with the IE dropdown, i am displaying Japaneese text in dropdown but in IE some different junk characters are displayed. but in Firefox the dropdown works fine...
here is the screen shot of IE

Please have a look at screenshots in attachements

my CSS file contatains this font family
font-family: "ヒラギノ角ゴ Pro W3", "メイリオ", Meiryo, Osaka, "ＭＳ Ｐゴシック", "MS PGothic", Verdana;

and the page encoding is UTF-8, please give some suggestion.