This is how the button looks in FF. This is how the same button looks in IE 6.

IE displays border width wrong (too thick). How do I make this pathetic IE-thing work for once?

Here's my CSS:
  display: block;
  float: left;
  border: 2px solid #1cb2c0;
  background: #1cb2c0 url('../../images/button-01.png') repeat-x left top;
  color: #fff;
  font-weight: bold;
  font-size: 14px;
  padding: 0 20px;
  overflow: visible;
Any help would be great.