How do I set Extras to be off by default when I start up Photoshop 7?

I don't know what setting changed, but every time I start up Photoshop 7 for Windows, View → Extras is checked, and a grid overlay appears on the image pane.

I'd like to set the default to View → Extras being unchecked / unticked when I start Photoshop.

There does not appear to be an obvious way to set this configuration within the application.

How can I make Photoshop 7 not show extras when I start up the program?