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My Phillips TV loses LCD signal 50 inch 50"52PFL5704D/F7 has latest drivers at of February 2011. I tried 4 HDMI cables and two other TVs from different manufacturers. The other TVs work and the HDMI cables have been found problem free. All 4 of the HDMI ports on this TV lose the connection with the laptop that is running Windows 7. The laptop is NV53 although I also believe my work has found to indicate the laptop is not the issue. I have concluded that Phillips needs to update their drivers. A search on Google will find many other people that have found this issue.