Telepítés után: "headers already sent by"...

Az alábbi a problémám:
Felraktam a drupalt, és az adatbázis beállítása, stb. után a következőket dobja ki:

5
Warning: session_start(): Cannot send session cookie - headers already sent by (output started at /student/gepesz/gi0204/qgipetri/public_html/sites/default/settings.php:1) in /student/gepesz/gi0204/qgipetri/public_html/includes/bootstrap.inc on line 749

Warning: session_start(): Cannot send session cache limiter - headers already sent (output started at /student/gepesz/gi0204/qgipetri/public_html/sites/default/settings.php:1) in /student/gepesz/gi0204/qgipetri/public_html/includes/bootstrap.inc on line 749

Warning: Cannot modify header information - headers already sent by (output started at /student/gepesz/gi0204/qgipetri/public_html/sites/default/settings.php:1) in /student/gepesz/gi0204/qgipetri/public_html/includes/bootstrap.inc on line 551
Warning: Cannot modify header information - headers already sent by (output started at /student/gepesz/gi0204/qgipetri/public_html/sites/default/settings.php:1) in /student/gepesz/gi0204/qgipetri/public_html/includes/bootstrap.inc on line 552

Warning: Cannot modify header information - headers already sent by (output started at /student/gepesz/gi0204/qgipetri/public_html/sites/default/settings.php:1) in /student/gepesz/gi0204/qgipetri/public_html/includes/bootstrap.inc on line 553

Warning: Cannot modify header information - headers already sent by (output started at /student/gepesz/gi0204/qgipetri/public_html/sites/default/settings.php:1) in /student/gepesz/gi0204/qgipetri/public_html/includes/bootstrap.inc on line 554

Warning: Cannot modify header information - headers already sent by (output started at /student/gepesz/gi0204/qgipetri/public_html/sites/default/settings.php:1) in /student/gepesz/gi0204/qgipetri/public_html/includes/bootstrap.inc on line 555

Arra gyanakodtam, hogy a statikus / dinamikus címekkel van vmi baj, ezért a
$base_url sorhoz ezt írtam:
"http://www.uni-miskolc.hu/~qgipetri"
Itt van az index.php

Mi lehet a gond?