It seems impossible to post the word "Poke r" in any form without R being separate from the "Poke".
p p p poker face
In the meantime, you can work around it (as shown above) by selecting the "e" in the word (or whatever other letter you want) and select the font colour to white.
As mentioned in the thread about spam links, I think this is some security feature enabled by my host. I have asked them to confirm and if they can turn it off or give me a way around it.
poker
* Fixed - If you find any other words or functions giving you those same 404 errors, create a new thread for them.