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Changing the DPI scaling also changes the size of your desktop icons . To change icon size more dramatically, right-click the desktop and choose View . At the top of the submenu that appears, you ll find three commands Large Icons, Medium Icons, and Classic Icons . Medium is the default . Large is really large, and Classic is a euphemism for teensy . Take your pick .

If your system does not meet the hardware requirements for Aero, or if you are running Windows Vista Home Basic, the Use Windows XP Style DPI Scaling check box will be selected and unavailable. Windows will do its best to scale all text elements, both in the operating system s user interface and in your applications, using methods that do not involve desktop composition. On the other hand, if you are using the full Aero interface, try clearing this check box if it s currently selected. Windows Vista will then use desktop composition in scaling your text. (Desktop composition is the technology that enables Windows Vista, when running under the Aero interface, to achieve smooth window movement, thumbnail previews of taskbar buttons, transparent window frames, Flip 3D, and so on. With desktop

composition on, applications write to video card memory buffers instead of directly to the screen, and the Desktop Window Manager component of Windows Vista arranges the video surfaces in the appropriate order and presents the results to the screen.) Changes that you make in the DPI Scaling dialog box require a system restart to take effect. After you reboot, test some text-centered applications to see if you like the result. If you don t, return to the DPI Scaling dialog box and try another setting.

If you re running Aero and have applied a nondefault font scaling factor, it is possible that some of your older programs will produce fuzzy text . Newer DPI-Aware programs get information about the current scaling factor from the operating system and adjust themselves accordingly . Older applications that were not designed with DPI scaling in mind assume they are running under the default scale of 96 DPI, and the operating system scales them . A side effect of this is that fonts and icons can sometimes appear fuzzy . If you find a particular program s display unsatisfactory, find the executable file for that program in Windows Explorer . (With most programs, you can right-click the entry in the Start menu and choose Open File Location on the shortcut menu .) Right-click the icon for the executable, choose Properties from the shortcut menu, and click the Compatibility tab . In the Settings section, select Disable Display Scaling On High DPI Settings .

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ClearType is a font-smoothing technology patented by Microsoft and optimized for LCD (flat panel) displays. Font-smoothing rounds the corners of characters, eliminating jagged edges and easing eye strain. ClearType is turned on by default on all systems, regardless of display type, but if you re using a cathode-ray tube (CRT) display instead of an LCD display, you might want to try using Standard font-smoothing instead of ClearType. Microsoft believes that ClearType improves readability on both CRT and LCD displays, but if you re a CRT user you should probably compare the two fontsmoothing methods to see which one works better for you. (You can also turn fontsmoothing off altogether, of course, but it s hard to imagine any benefit from doing so.) To check or change your font-smoothing settings, right-click the desktop, choose Personalize from the shortcut menu, click Effects in the Appearance Settings dialog box (see Figure 3-2). As Figure 3-7 shows, you can switch from one smoothing method to the other by opening the Use The Following Method To Smooth Edges Of Screen Fonts list.