Error on starting conversation

I get a 'Bonk' when I start a conversation with someone on my installation of Vanilla (2.0).
More details:
Field 'CountMessages' doesn't have a default value
insert GDN_Conversation (InsertUserID, DateInserted, UpdateUserID, DateUpdated, Contributors) values (:InsertUserID, :DateInserted, :UpdateUserID, :DateUpdated, :Contributors)
I'm running Vanilla 2.0 on Apache 2.2, PHP 5.2 and MySQL version 5.0.51a.
Did anyone else encounter this problem and/or is (not) able to start conversations???
Joos
More details:
Field 'CountMessages' doesn't have a default value
insert GDN_Conversation (InsertUserID, DateInserted, UpdateUserID, DateUpdated, Contributors) values (:InsertUserID, :DateInserted, :UpdateUserID, :DateUpdated, :Contributors)
I'm running Vanilla 2.0 on Apache 2.2, PHP 5.2 and MySQL version 5.0.51a.
Did anyone else encounter this problem and/or is (not) able to start conversations???
Joos
1
Comments
alter table gdn_conversation alter countmessages set default 1;
alter table gdn_conversation alter lastmessageid set default 1;