After signing in to Telus Optic (in BC) on my Macbook and selecting a channel the content is shown but is frozen. (Tonight it happened when I wanted to watch a baseball game on channel 911.) If it were a video it is though it is stuck on a single frame. There seems to be nothing I can do to "unfreeze" the picture, including returning the previous webpage and then re-selecting the channel (after which the picture is updated but still frozen). It makes no difference if I'm using Safari or Chrome. What to do?