Are you referring to Notepad (click Start/All programs/Accessories/Notepad)? If so and a fix is not offered here you could visit How-to Geek and select a free text editor from those listed there. How-to Geek has been around forever offering solid help so there should be no fear downloading anything suggested there.

Bob, When on the web surfing I like to sit back from the monitor with my feet up on the corner of the computer desk and the keyboard in my lap. I have my FF display set at Franklin Gothic Medium 20. It works much better than the default. DA

Here is how to do in in Notes. here is how to change it in "The perfect browser"

Just another comment on computer use and glasses. If you wear bifocals or progressives, it's important to buy computer glasses. If you don't, and use your regular progressives to work at the computer, you will be holding your neck at an unnatural angle, and there is research that shows that can cause permanent damage to the neck over time. For the progressive wearer, computer glasses would be designed so that the bottom of the glasses are for close work, and the upper part is formulated for computer screen distance. The brand Compuvue makes lenses that are just amazing--NO side distortion (like you get with regular progressives). Luckily, my dd is an optician and keeps me both informed and supplied with the best eyecare solutions. It's really important, though, that if you do a lot of computer work, that you discuss your corrections with your opthalmologist or qualified optician (not all opticians are licensed, in all states) and get the proper correction for your needs. One pair of glasses may not be enough to handle all your activities properly. And considering the cost of medical treatment, to me it IS a money-saving tip to have the best eye correction possible.