Header problems

I keep getting these errors when I load my page at the login screen. Any quick ideas what the problem could be?
Warning: session_start() [function.session-start]: The session id contains illegal characters, valid characters are a-z, A-Z, 0-9 and '-,' in /home/melvinp/public_html/surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php on line 4
Warning: session_start() [function.session-start]: Cannot send session cookie - headers already sent by (output started at /home/melvinp/public_html/surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php:4) in /home/melvinp/public_html/surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php on line 4
Warning: session_start() [function.session-start]: Cannot send session cache limiter - headers already sent (output started at /home/melvinp/public_html/surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php:4) in /home/melvinp/public_html/surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php on line 4
Warning: Cannot modify header information - headers already sent by (output started at /home/melvinp/public_html/surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php:4) in /home/melvinp/public_html/surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php'>surfsearcher.com/xlist/include/dbcommon.php on line 17
Thanks,
-Mel