Lazy Congo Jr

Over the past few weeks our venues congo jr is making a fuss about starting up. Almost every time it gets to the  grey Congo logo display screens and wont go any further, it then needs to be switched of completely and restarted when 1 of the inbuilt displays normally wont work, needing to be restarted again, it eventually gets going, but I wondered if any one else has had problems or if there is any solution to the problem.

For info its running 6.0.3, 3 years old, 1 main board and a 20x 2 fader wing

Thanks

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