weird error on my wordpress 2.0 blog

anyone have any idea how to correct this ? look on the left hand side under “most recent posts” and then the last one in the list

http://www.bestanlageobjekt.com/blog/2006/01/20/hello-world/

it creates an extra ‘y’ character under the list..depending on what the post title is, it will duplicate the last character down there..

below is my stylesheet for the subcontent (sidebar)

/* subcontent
————————————————–*/
/* #subcontent {background:url(images/mx4/subcontent_bg.gif) top left no-repeat;} */

/* subcontent headings
————————————————–*/

/* subcontent list
————————————————–*/
#subcontent ul li {border-bottom-color:#F0F0F0;}

#subcontent li a:hover {background-color: #F5F5F5;}

#subcontent ul.pages li {list-style-image:url(images/mx4/post_yellow.gif);}

#subcontent ul.categories li,
#subcontent ul.months li {list-style-image:url(images/mx4/categories_yellow.gif);}

#subcontent ul.links li {list-style-image:url(images/mx4/links_yellow.gif);}

#subcontent ul.feeds li {list-style-image:url(images/mx4/feeds_yellow.gif);}

#subcontent ul.posts li {list-style-image:url(images/mx4/post_yellow.gif);}

#subcontent ul.categories li li {list-style-image:url(images/mx4/sub_categories_yellow.gif);}

#subcontent ul.recentcomments li {list-style-image:url(images/mx4/comments.gif);}

#subcontent ul.recentcomments li li {list-style-image:url(images/mx4/comments.gif);}

/* subcontent
————————————————–*/
#subcontent {
float:left;
width:185px;
padding:15px 0 0 0px;
font-size:0.9em;
line-height:1.3em;
}

* html #subcontent {padding-top:32px;} /* dirty fix for IEWIN; temporary! */

#subcontent ul, #subcontent p {margin:0 10px;}

/* subcontent headings
————————————————–*/
#subcontent h2 {
margin:18px 0 10px 0;
/* font-family:Verdana, Arial; */
/* font-size:1em; */
line-height:1em;
text-transform:none;
font-size:1.1em;
text-transform:none;
letter-spacing:1px;
color: black;
}

#subcontent h2 em {
display:block;
padding:5px 10px;
font-style:normal;
font-weight: bold;
color: black;
}

/* subcontent list
————————————————–*/
#subcontent ul li {
margin:2px 0 2px 18px;
padding-bottom:2px;
border-bottom:1px solid;
}

#subcontent li a {
display:block;
padding:1px 0;
height:1%; /* IE WIN */
}

#subcontent ul.categories li ul {margin:0;}

#subcontent ul.categories li li {
margin:0;
padding:0 0 3px 0;
border-bottom:none;
}

#subcontent ul.categories li ul ul {margin:0 0 0 16px;}

#subcontent ul.recentcomments li ul {margin:0;}

#subcontent ul.recentcomments li li {
margin:0;
padding:0 0 3px 0;
border-bottom:none;
}

/*#subcontent ul.recentcomments li ul ul {margin:0 0 0 16px;}*/