38c38,43
<   db_query('DROP TABLE {chatblock}'); 
---
>   db_query('DROP TABLE {chatblock}');
> 	variable_del('chatblock_number_messages');
> 	variable_del('chatblock_get_url');
> 	variable_del('chatblock_ignore_user_1');
> 	variable_del('chatblock_refresh_rate');
> 	variable_del('chatboxlastmessage');