White Blank Screen of death when running drupal in apache or lampp

The white screen of death is usually caused by a lack of memory – on your dev box, you just need to increase the amount of amount of memory allocated to PHP in php.ini. So if you are using lampp, go to /opt/lampp/etc/php.ini and find the line: memory_limit = XXM. Increase this XXM to say 32 or 64M and the white screen of death should go.