We seem to be having a few technical difficulties every now and again.
The following message sometimes appears when a you reply to a post:
If this does appear, please do not submit the reply again as it will have been added to the post.Ran into problems sending Mail. Response: 451 Error: queue file write error
Line : 200
File : smtp.php
Just return to the main forum page.
I will update this post as soon as it is fixed.