I installed XOOPS 2.2.3 Final on Localhost - no problems during installation. But on the main page I see:
Notice [PHP]: Only variables should be assigned by reference in file z:\home\xoops\www\kernel\config.php line 239
Notice [PHP]: Only variables should be assigned by reference in file z:\home\xoops\www\include\common.php line 215
Notice [PHP]: Only variables should be assigned by reference in file z:\home\xoops\www\kernel\config.php line 239
Notice [PHP]: Only variables should be assigned by reference in file z:\home\xoops\www\kernel\config.php line 239
Notice [PHP]: Only variables should be assigned by reference in file z:\home\xoops\www\kernel\groupperm.php line 229
Notice [PHP]: Only variables should be assigned by reference in file z:\home\xoops\www\kernel\blockinstance.php line 169
Notice [PHP]: Only variable references should be returned by reference in file z:\home\xoops\www\kernel\blockinstance.php line 111
Notice [PHP]: Only variables should be assigned by reference in file z:\home\xoops\www\modules\system\blocks\system_blocks.php line 151
Notice [PHP]: Only variables should be assigned by reference in file z:\home\xoops\www\kernel\groupperm.php line 229
Notice [PHP]: Only variables should be assigned by reference in file z:\home\xoops\www\modules\system\blocks\system_blocks.php line 154
Notice [PHP]: Only variables should be assigned by reference in file z:\home\xoops\www\modules\system\blocks\system_blocks.php line 159
Notice [PHP]: Only variables should be assigned by reference in file z:\home\xoops\www\modules\system\blocks\system_blocks.php line 159

How to fix it????
P.S. MySQL 4.1.8-max; PHP Version 4.4.0

Thank you!

Please, answer my queastuon! I can't solve the promlem! :(

Go to Preferences - System - General Settings, set Debug Mode to Off. The notices will go away.