Correcting text in Word 2003

[Wideangle]

When I make a correction in test in Word 2003, the program erases the
existing text as I type, which causes me to rewrite the whole paragraph.

This is a new development, happening right after I installed a new version
of Photoshop Elements.

How can I get back to being able to insert my correction?

 

[Peter T. Daniels]

Press the Insert key on your keyboard.

(It's easy to touch accidentally since it's usually right next to
Delete and Backspace.)

 

[Gordon Bentley-Mix]

Tools | Options... On the Edit tab ensure that the 'Overtype mode' checkbox
is not selected.