Problem with getting updates from YAST

every time i try to download i receive the following error.

file ‘/repodata/repomd.xml’ not found on medium ‘http://download.opensuse.org/repositories/Virtualization:/VirtualBox/openSUSE_11.3/

There was a scheduled up grade to the repo’s it may nit have gotten back on line yet.

That repo’s gone before the scheduled maintainance.
Try Index of /repositories/Virtualization/openSUSE_11.3