Wilf,
Thanks for writing in. We have not been able to recreate your issue. That doesn't mean there isn't a problem, it just means it is a tricky one. Could I get a little more information from you? What model Roku are you using? Also, what type of internet connection are you using (DSL, cable, etc)? Last thing, what country are you watching from?
That will help us run a few more tests to see if we can narrow down your problem. My theory is that there is an issue with one of our CDN points and it is affecting you, but not us.
Thanks for watching,
Don Pezet
Host, ITProTV