I've been posting about this problem buit no solution so far. I am running XOOPS since 2.0.3 and upgraded every time up till 2.0.13.1. Now I am willing to go to 2.2.2.

I'am running an exact copy of my site (www.boardtsyle.nl) at my test server. Upgrading to 2.2.2 no problem (except for images not be shown in news in Internet Explorer with default theme).
The real problem comes when I want to upgrade the forum to CBB 2.2. I overwrite all the files and update in module admin, as I am told to do. Then the trouble starts, database errors when accessing the forums, and blank screens in forum admin menu's.
I've tried so many reinstalls (using database copy) I can't even count them anymore. Don't know what to do anymore. PLEASE HELP ME OUT!

(I've got over 50.000 posts in my forums and don't want to lose them).

If you havent upgraded yet from 2.0.13.1 to 2.2 - I would wait longer, until the next release comes out.

Untill which release do you suggest? (forum or Xoops)