ILIAS warning

if your pear is working, you also setup php.ini file
if you find error like this
Warning: file(/lang/setup_lang_sel_multi.lang) [function.file]: failed to open stream: No such file or directory in /www/htdocs/nrumble/ilias3/setup/classes/class.ilLanguage.php on line 108

Warning: file(/lang/setup_en.lang) [function.file]: failed to open stream: No such file or directory in /www/htdocs/nrumble/ilias3/setup/classes/class.ilLanguage.php on line 124

Warning: parse_ini_file(/setup/ilias.master.ini.php) [function.parse-ini-file]: failed to open stream: No such file or directory in /www/htdocs/nrumble/ilias3/setup/classes/class.ilSetup.php on line 144

Warning: parse_ini_file(/setup/client.master.ini.php) [function.parse-ini-file]: failed to open stream: No such file or directory in /www/htdocs/nrumble/ilias3/setup/classes/class.ilClient.php on line 73

Warning: dir(/lang) [function.dir]: failed to open dir: No such file or directory in /www/htdocs/nrumble/ilias3/setup/classes/class.ilLanguage.php on line 192

Warning: chdir() [function.chdir]: No such file or directory (errno 2) in /www/htdocs/nrumble/ilias3/setup/classes/class.ilLanguage.php on line 194

Fatal error: Call to a member function read() on a non-object in /www/htdocs/nrumble/ilias3/setup/classes/class.ilLanguage.php on line 197

Answer or this problem
// ADDED BY CDRIGA
define ("ILIAS_ABSOLUTE_PATH","/home/myusername/public_html/iliasfolder");