Deleting my whole picture instead of selection...Why?

[mrcool88]

Previously I would use the fuzzy select to select a portion on an image and then press delete on my keyboard and it would delete the selected portion. Or, I would use the color select tool and select a certain color and delete that color by pressing the delete key.

Now when it selects a portion of a picture, either by fuzzy select or with the color select tool, and I press delete, it deletes the entire photo, not just the selected area.