I have had my Roku for a while and everything has been just fine. Then when my friend was housesitting, he touched something and the display ratio changed so everything on the menu page is huge and zoomed out and I can't navigate. I tried to go into settings to reset the display ratio but it's not changing anything. I have also tried restarting the Roku but it still comes up with the wrong aspect ratio.
It's a HD 4K streaming player.
Any suggestions??
Is this connected to a non-4K tv? It sounds like the Roku is sending a 4K signal to the TV but the TV can only display part of it.
If you can see the screen options well enough to navigate:
Settings > Display type
When you change the Display type to a new setting it runs you through several screens:
Try the Zoom, or P-size, or some similar button on your TV remote.