Check the specifications for your monitor. The manual will list the available resolutions.
Blurry text on a CRT monitor is the result of the computer's screen resolution settings. When the resolution is set too low, the text appears fuzzy or "blocky," depending on your video card. At higher resolutions, the text appears sharper, but it is also smaller on the screen. Windows Vista will automatically choose a default resolution based on your hardware, but you can customize the settings to your individual preference. LCD monitors have a specific recommended resolution, but CRT monitors are more flexible with the resolutions they will accept.
Click the "Start" button on the Windows Vista task bar and select "Control Panel."
Choose "Appearance and Personalization" and select "Personalization."
Click "Display Settings" and move the slider to the appropriate resolution for your monitor. If colors on the monitor appear off, change the color setting to "Highest (32 bit)."
Click "Apply" to save the changes. The monitor will switch to the new resolution. Click "Accept" to accept the changes.
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