The Image Dispalys Vertical Lines

While presenting a presentation in Microsoft Power point on a projector we might sometimes see vertical lines on the images and also some spots. This is due to inappropriate settings in the screen brightness or projector lens might not have been cleaned from a long time or so on. 

To overcome this: 

1. Adjust the brightness of the image.
2. Check the projector lens to see whether it needs cleaning.
3. Adjust the sync and tracking settings on the projector.

These are the possible reasons to avoid this issue. We may also check screen resolution of the image and the size of it. 

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