Your description of the shaking still is too vague. The best idea I have for you is to replace your cables if the picture is noisy/grainy. If that doesn't fix the problem it is likely the power supply not grounded properly and possibly not enough shielding between the power supply and light engine. If your image is jumping and flickering, it is also going to be the power supply.
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Your description of the shaking still is too vague. The best idea I have for you is to replace your cables if the picture is noisy/grainy. If that doesn't fix the problem it is likely the power supply not grounded properly and possibly not enough shielding between the power supply and light engine. If your image is jumping and flickering, it is also going to be the power supply.