On demand streaming is non-functional and does not play on my laptop

I cannot see movies on my on-demand streaming. Since this is the primary usage scenario for me I am a bit upset. When I play a movie some movies cannot sync and I end up with a split picture with a large gap in the middle of the screen. The images are pixilated and play stop-and-go. It makes it impossible to watch streaming content. AGAIN, this is my primary viewing scenario, so if it isn't fixed, I will abandon your service.