With the example, (it happens to other text as well), I've just tried adding and extra 'po'
an extra 'po'
it strips out one' po' on the host and display the URL as I want
The host state the have no problems with other websites.... but they are moving to servers soon and I hope this will fix this issue.
It's weird problem, that I wondered if anyone else knows the anwswer to it. 