I will get this set up, I swear it

Anyway, having an issue where I dig my way through the menus to MythStream and select it, MythTV drops to desktop and nothing happens. *boggles* Anyone have any guesses as to why, much apologies again for being a newbie, just trying to get my tv set up .

I did have it working once, but it has yet to work since that one time (got in and randomly played one of the streams).

Thanks in advance.