I moved this thread to the design forum since it is a css issue and not a bug.
In that skin, you can edit the file stylemojo.css in the skin folder, look for this:
.vevent { padding:10px; }
change it to this
.vevent { padding:10px; clear:left; }
then go to Administration > Advanced Tools > Design Tools > Cache Tool and click the button to reset the skin guid
that should solve it