Help please! Frequency out of range on projector

[Trent8]

Hi, I have a Sony VPL-EX5 projector. I turned it on last week with no issues, just plugged the cords in and turned it on, it worked first go. This week I tried turning it on so I can test it with the rest of my set up (Broadcasting a meeting) and all I get is a blue screen and a thing saying "frequency out of range". I have tried all the normal fixes - turning everything off, checking the cables and turning it back on, I have the Laptop (Dell running Microsoft 11) set to 1024 x 768 and the refresh rate to 60 Hz. When I first made the change to 1024 x 768 resolution, the projector started worki

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