Canon LCD display

[Tustinman]

Hello, I just noticed last night that while taking pictures from my Canon 5D Mark I, the LCD display is showing a couple of blue lines, top and bottom, please see picture attached.

I don't know what I did but this is the first tie I'm seeing this.

Can anyone help me or let me know how to clear these lines. 

Thank you for your assistance and guidence.

[Waddizzle]

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@Tustinman wrote:

The menu on the Canon %D is totally different than the 7D Mark II.

I cannot locate a function to change the aspect ratio.

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What shooting mode is the camera in?  The Basic shooting modes limit the menu options.  Set the camera to P, Av, Tv, or M shooting mode, and take another look.