[imedic]

If I log in and set automatic log in I get this error (simple log in is ok):

Unable to add cookies, header already sent.
File: /home/eugenol/public_html/forum/includes/class_core.php
Line: 3243

If I click on forum home link I get also the above error.
If I click new messages it shows and then all is ok including index url

I have manually clear cookies.
I just activate rewrite index url but it was not the cause (I get error also when feature not active).

Edit: I will apreciate allot any help since I have the product activated and error showing on live forum. I dont want to deactivate it so I mess with google too much

And after more testing I have found that previous error:

Warning: mysql_fetch_assoc(): supplied argument is not a valid MySQL result resource in [path]/includes/functions_forumlist.php(393) : eval()'d code on line 347

Warning: implode() [function.implode]: Argument must be an array in [path]/includes/functions_forumlist.php(393) : eval()'d code on line 348

Appears only while browsing index and categories of forums. if I click on a forum and I see threads no error.

Viewing forum categories is possbile only with Drupal like setting. All other settings (Directory Directory, TfSEO 1 Compatible* , .HTML) mess the view of the page totaly.