Why do I see sporadic horizontal lines when playing a Blu-Ray DVD movie if the notebook PC wireless is turned on?
The lines on the display are caused by interference from the wireless network. To resolve the issue, you should close any open applications and turn off wireless by pressing the notebook PC wireless button. This should prevent any further wireless network interference. See HP Notebook PCs – Video Wobble May Occur When Playing Blu-Ray Disk at High Resolution While Connected to HDTV Using HDMI on Extended Mode .
