cannot determine objectclass of entry (help please!)

["Bernd Prager" <bprager@iamerica.net>]

I'm still trying to fix the MySQL database connection.
I'm sure somebody has done this already.

I cannot add any entries in the database.
No matter what I try I always get "SQL-backend error" 

or in the slapd -d5 log:
"backsql_add(): cannot determine objectclass of entry -- aborting"

The datebase doesn't even include my root-dn and I can't go
from there as the QuickStart says.

Please help!
Thanks,
-- Bernd