J4ZZ, problems with kernel, libxau6, maybe other problems... Maybe a reflash and starting again with a tabula-rasa N900 would be fastest option But if you will make it work eventually without a reflash, you are my hero. My oppinion is, if one has any technical knowledge and has time, (s)he should try to fix a thing instead of replacing it with a new one. Are you an eng of some kind?