Hi Bernard,
Sorry I didn't reply back in November but the problem seemed to rectify itself.
We are now in the process of moving our site onto a new server using Moodle version 1.6.3
I am using using Activity Locking version 2 with this but getting the previous problem I had, error message on my homepage:
Fatal error: Call to undefined function: isunlocked() in /mnt/drbd/home/promethean/prometheanlearning.com/www/course/lib.php on line 829
Are these 2 versions compatible?
If not where can I download a later released version of AL?
Thanks
Nicola.