Hello,

Views Mail seems to be a great module so I installed it for testing purposes.
After the installation everything is still fine but when I visit the View Mail configuration page and click on 'save' or navigation to an other page across my Drupal website I receive a WSOD with the following error message on all pages:

Fatal error: Call to undefined function lock_acquire() in D:\DEVELOPMENT\xampp\www\mysite.com\modules\locale\locale.module on line 357

I always have to remove the whole Views Mail module from my sites/all/modules folder to get rid of this message.
I'm using a fresh Drupal 6.16 installation with PHP 5.2.8 on Apache 2 and MySQL 5.
My Drupal installation uses the core local module for the "official" German translation from drupal.org.

It would be so great if this bug could be fixed.

Thank you very much for all your work on this module!

Stefan