Thanks - I was editing my post above as you sent in this reply.
All is sorted now.
I always have use cache for faster loading off, however, I closed the game, moved the old fonts back in, reloaded and worked out where clear cache was and the reload skin button.
I then moved the new fonts in (with the game still open) and completed what you said above - Clear Cache, Reload Skin - All works now.
For good measure I closed the game (new fonts still inside skin fonts folder), opened the game and completed the Clear Cache, Reload Skin again and the dont is stll there.
Thanks so much for guiding me, I did think about clearing and reloading but had no clue how without being able to see things - who knew you could copy fonts in and then do that with the game still running.
All perfect now - thanks again, appreciate it.