Little help?

ok i have a site i’m making and everytime i try to put in my logo, it has it in a white box. the logo backround is transparent in photo shop but not with internet explorer…

the css file is

body {
filter:progid:DXImageTransform.Microsoft.Gradient(endColorstr=’#99ffff’, startColorstr=’#99ccFF’, gradientType=‘0’);
}

thanks for your help!