spaces in password

If the user is NOT already logged in, following message will created:

Forbidden
You don't have permission to access /drupal/node/ on this server.
Apache/2.0.55 (Ubuntu) PHP/5.1.2 Server at **************** Port 80

If the user is logged in (another window, thru password-regeneration mail 1time link), everything is ok.

Could it be have any connection with PATH issue, there is needed to create image subdirectories into node directory?