Dialog error in IE6/7

Dialog error in IE6/7


Hi,
I am using jQuery UI 1.6rc6 together with OpenLayers (http://
www.openlayers.org/) and have come across som issues running it in
IE6/7. When I try to move the dialog i get the error "Error: Failed",
this occurs only when i have a vector layer in OpenLayers and I havent
been able to reproduce this in any other way.
Here is an example:
http://www.lindmark.org/temp/test/dialogtest.html
Any ideas, it works perfectly in firefox...
Fredrik