Thanks for the tip, will try. Of course I always use --no-install-recommends, keeping an eye on recommended packages anyway. Unfortunately, more and more packages depend on upgraded gconf2. Will try trick with replacing.

Anyway, what about info I kindly asked for? Do we got at least ideas why it doesn't work? I'm not the kind of debian guru that can help fixing it (probably), but maybe other people interested will have a clue, and together we will be able to overcome that limitation?

The worst thing that i think about is lack of information. Neither here or on the wiki one can read what-how exactly doesn't work, and what we know about possible source of problems. My very limited knowledge doesn't give ANY ideas why new version of gconf2 can't work, for example.