[H] SMALL TEXT IN SCREEN

[Sam]

Using W7 Home on HP laptop.
My daughter used my laptop today
When I used it later for a Rootsweb search the text on the screen was 
only about 1/2 the usual size.
Can anyone tell how to change the text size back to what is normal..
It is only on this program.
The text in Thunderbird is just great.
Sam