Installing and upgrading help

Hello,

I'm trying to use a Moodle 2.0 fresh installation.

I noticed that we can supress wiki page (referenced as a bug), but i have a bigger problem at the moment.

The search engine always return nothing, or sometimes an error.

I try to activate the full text search, but i have error in cron. After looking at the code, it seems that all the _comments table are missing during the indexing

ie : mdl_data_comments


What can i do to fix this ?

Thanks a lot.