Fixed!
It was a firewall problem -> Comodo. Recently installed.
For reasons beyond me it allowed previous versions of Tickstory but blocked this one.
I have now found out how to mark the file as ALLOWED and Tickstory is now working well.
When you remove Comodo from the start list and reboot, Comodo still has running processes!
Tickstory fails even when those processes (and trees) are killed.
Comodo doesn’t give me any trouble 99.9% of the time – why doesn’t it like Tickstory?
Thanks for your quick reply.
Regards