Thank you Charles for your quick response !
The problem was that it wasn´t really an upgrade, cause I made a clean install using my old templates, members, and vars directories. So I never used de "Upgrade your UBB" option on the cp. :rolleyes:
The problems described above luckily were solved.
Now I have another problem:
After I reply to a topic, I am sent to the topic, but my reply does not appear. I have to refresh the page to see it.
Any ideas? Thanks again