[support] support Digest, Vol 96, Issue 14

[Roger]

Check you php version.
>
> From calendar project page on drupal.org:
> *NOTE: I basically have no more time to support problems related to
> outdated versions of PHP. If you want dates to work correctly you need
> to use PHP 5.2 or higher. 
thanks, according synaptic [Ubuntu] I have php 5.3.2-1.
Seems from other posts it may be too far updated?
Thanks again
Roger