Do a right click on the desktop to bring a box with a number of options and select "Properties". Then select "Settings". You should see a box pop up that shows your monitor and display adapter. There's a slide bar to select the resolution. Select the desired settings and select "Apply". You'll get a preview of what it will look like. You can opt to save that setting. There might be other adjustments needed, however. This could affect refresh rates and size on the screen. How you deal with these depends on what type monitor you have. If yours is an LCD and this setting is other than the native resolution, you will lose some image quality. But, that's one way to get to screen settings.
Please help. I have downloaded a program and it is telling me that my monitor resolution needs to be 1024 x 768. How do I change this? Can I?