Sortables broken in IE

Sortables broken in IE


I have created an iGoogle-esque dashboard system for my users that
works beautifully in Firefox but only so-so in IE. The layout is such
that there are 3 columns that they can drag/drop items to various
columns to suit their needs (things such as an RSS Reader, calendar,
product news, etc). In IE, when one of the dashboard items is
dropped, it can be re-dragged until the page is completely reloaded.
Its as if IE forget that the item is still draggable.
Go to: http://dev.toolbox.learningfocused.com
Login with: jquery@demo.com
and a password of: demo
One you get logged in, drag and drop one of the items. You don't even
need to move its location. Just slightly move it til its in a dragged
state then drop. Then try to drag/drop again. It won't budge. If
you reload the page it'll become draggable again. Ideas? This is
rather urgent as we are planning to roll out with this new layout next
week and so far we've been unable to locate the issue....