We just discovered that we are also experiencing this same issue on CentOS 6 and Fedora 14. We are not experiencing the issue under CentOS 5 and Ubuntu 10.04. So this issue does not appear to be Debian-specific.
Furthermore, we also discovered that using a different DNS server (the Google DNS servers), we do not experience the problem. It is likely that this is a problem with our organization's DNS servers. From a Debian point of view, this bug can probably be closed. However, when we get the problem figured out I will try to update this bug with the solution. -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org