picture displaying partially outside div box in firefox

[WebDevGuy]

I have a picture (about 40px X 40px) inside a div box that is partially being displayed outside the div box. It only happens in firefox. In IE, the entire picture is inside the div box.

Here's the html code:

<div class="adbox">
	<img src="i/item_picture.gif" class="rightImage" />
	<p class="item">item title</p>
	<p class="description">description</p>
</div>

Here's the css code:

.adbox {
	width: 220px;
	padding: 2px 4px 2px 6px;
	margin: 0 0.5em 10px 0.5em;
	border: 1px dotted #B1B1B1;
	background-color: #FFFFFF;
}
.adbox .title {
	display: block;
	font-style: italic;
}
.adbox .description {
	font: 80% Verdana, Geneva, Arial, Helvetica, sans-serif;
	display: block;
}
.adbox .rightImage {
	float: right;
}

Any ideas how to make the pictyure display entirely in the div(adbox) box in firefox?

Thanks for any help!