trying out 2.2.4 and i've noticed on phpdebug when i get a white screen in forums it shows this

Notice [PHP]: Constant _MD_POSTEDON already defined in file modules/news/language/english/main.php line 88
Notice [PHP]: Only variables should be assigned by reference in file modules/smartfaq/xoops_version.php line 320
Notice [PHP]: Only variables should be assigned by reference in file kernel/config.php line 315
Notice [PHP]: Only variable references should be returned by reference in file modules/extcal/include/Calendar/Factory.php line 155
Notice [PHP]: Only variable references should be returned by reference in file modules/extcal/include/Calendar/Factory.php line 155
Notice [PHP]: Only variables should be assigned by reference in file modules/system/blocks/system_blocks.php line 348

IF i uncheck and uninstall the extcal module it then doesnt get any white screens, any ideas?

i realize it's only notices but must mean something is going on when i get a white screen and that message, and then uninstall that extcal module and dont have any problem viewing the newbb 2.32 forums

aix