this is due to a bug in the lenny version that's at least partially fixed in the version in squeeze:
http://bugs.debian.org/582612 from the above bug report: "This is caused by the insane way wdm handles refreshing of wm list, it directly modifies entry in wdm-config everytime wdm is started or stopped. ... This will not prevent prompting when upgrading from previous versions, but should leave this problem addressed for the future." so the squeeze version no longer has the bug that triggered the issue, but upgrades from older versions are going to suffer this issue. live well, vagrant -- To UNSUBSCRIBE, email to debian-bugs-rc-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org