I tried to create a support topic
and couldn't. I got an error message that this page would not be autolinked.
That seems pretty lame to me. I understand not starting with a number (or I pretend to understand) but...
Persoanlly, I'd love to see the support web do away with requiring WikiWord
titles but that's beside the point.
Whjy can't I name a page UpgradeTWiki40To401
Indeed you can - try clicking this: http://develop.twiki.org/~develop/cgi-bin/view/Sandbox/UpgradeTWiki40To401
(don't create the page). As is shown no autolink warnings are displayed.
What version are you running?
This must be in the Support web on TWiki.org. Vicki has reported several problems there. However there is no error message there either. Discarding.