I am experiencing the same problem when trying to upgrade libuim-dev (and dependencies). Looking at these two bug reports they seem to be the same symptom, so maybe they should be merged?
I am not sure about the proposed solution in #385581 though, is Conflict enough, should there be a Replace as well? Ming 2006.09.01 -- To UNSUBSCRIBE, email to [EMAIL PROTECTED] with a subject of "unsubscribe". Trouble? Contact [EMAIL PROTECTED]