Report "The issue is with regards to the Optoma HD300x projector When ever im watching a movie, say on 1080p on "cinema" image mode,the video quality seems a bit jerky for my liking. I'm wondering whether this is a HDMi issue as the cable is well over 2 years old and is approximately 3 metres long. What may the issue be? is it the HDMI output or is it something wrong with the projector? P.S. the 1080p video output is via an Acer, high spec laptop"