Good day to all: I just purchased a new Sony KDL-55HX850. As I watch the screen it suddenly goes blank (goes to blue screen when watching Direct TV - goes to black screen when watching BD) but returns to normal within 3 to 7 seconds. The set is fine as I am able to go to the HOME screen and see the HDMI feed inset in the screen. The inset screen goes blank yet the HOME screen stays visable with no changes. Regarding my setup: I have a Pre-HDMI Reciever so I carry all of HDMI input to a small powered HDMI Switch (4 ins - 1 out). In this configuration I used to run the single output to my old Toshiba CRT-style HDTV through a 4' HDMI lead. Now that I have the new Sony, that single output runs through a 30 ft long HDMI lead (purchased at Monoprice - specifically designed for the long length) across the room to the new set. The switch is an HDMI Ver. 1.3 that is about 4 years old. I have had some problems with the "handshake" when switching between devices in the old confiruration and would solve by shutting down the TV and re-starting it. So the switch has never been the most reliable part of the configuration. The questions I have are: 1) is the length the issue that can't be solved? 2) would making the jump to a new receiver that supports HDMI heal all problems? 3) can I simply place an HDMI booster or amplifier in line to the new Sony? Thanks.