[drupal-support] Newbie problem

[dvd]

I finnished installing durpal and everything went quite smoothly.

However there are two problems I face.

1. When I register a new account, this is the error message I get and I 
am not forwarded to the register done page"
Yes. I can login to mysql on localhost with my user and pass.

Location/insula/dr/?q=user/register 
<http://www.mypartybase.net/insula/dr/?q=/insula/dr/?q=user/register>
MessageAccess denied for user: 'insula at localhost' to database 'insula' 
query: LOCK TABLES sequences WRITE in 
/srv/www/vhosts/www.mypartybase.net/htdocs/insula/dr/includes/database.mysql.inc 
on line 66.
Severityerror

However th register does go thru and all is fine.

2. When we try to post a new blog and a new forum. We get the following 
errors, however again the post is fine.
Location/insula/dr/?q=admin/aggregator/add/category 
<http://www.mypartybase.net/insula/dr/?q=/insula/dr/?q=admin/aggregator/add/category>
MessageCannot modify header information - headers already sent by 
(output started at 
/srv/www/vhosts/www.mypartybase.net/htdocs/insula/dr/includes/common.inc:384) 
en la línea 192 del archivo 
/srv/www/vhosts/www.mypartybase.net/htdocs/insula/dr/includes/common.inc.

Severityerror

Any help welcomed thank you.