You may want to try Vista, it made a huge difference on my uncle's setup (he is using a 19" Samsung Flat-Panel LCD HDTV). With XP I could hardly read anything displayed on the screen. After building him a new PC with Vista Premium the text is much easier to read. See more information below:
Change Screen Resolution
The biggest change to screen resolution in Vista is that not all resolutions are displayed by default. Vista simply displays the resolution it thinks will be suitable for your monitor. This is based upon on the assumption that monitor size decided screen resolution as follows:
15 Inch Monitor Resolution 1024x768
17-19 Inch monitor Resolution 1280x1024
20+ Inch Monitor Resolution 1600x1200
While you can slightly alter these resolution - downwards rather than upwards - in order to increase the resolution above these figures you need to change a few settings.
1/ Right click on the desktop
2/ From the drop down menu click Personalize
3/ In the Personalize window click the Display Settings link
4/ To reduce the screen resolution adjust the slider until the desired resolution shows
5/ If you wish to increase the resolution above the default; and you must remember that your monitor must support this new resolution, then click the Advanced Settings button
6/ In the Advanced Settings window click the Monitor Tab. In the monitor tab window remove the tick mark from the 'hide modes that this monitor cannot display', then click Apply followed by OK
7/ An extended display resolution range should now be available on the Monitor tab. All you need do now is slide the resolution slider up to your desired resolution and then click OK
Make text easier to read using ClearType
Applies to all editions of Windows Vista.
Which edition of Windows Vista am I using?
ClearType font technology makes the text on your screen almost as sharp and clear as text that is printed on paper. It is on by default in this version of Windows.
To get the full benefit of ClearType, you'll need a high-quality, flat-panel monitor, such as LCD or plasma. Even on a CRT monitor, you might get some improvement in readability with ClearType.
To tune ClearType
You can use the online tuner to further adjust the legibility of on-screen items.
• Go to the Microsoft typography website, and then follow the instructions for tuning ClearType.
To turn on ClearType
1. Open Appearance Settings by clicking the Start button , clicking Control Panel, clicking Appearance and Personalization, clicking Personalization, and then clicking Window Color and Appearance. If the Appearance Settings dialog box is not displayed, at the bottom of the page, click Open classic appearance properties.
2. Click Effects.
3. In the Effects dialog box, select Use the following method to smooth edges of screen fonts.
4. Select ClearType in the list, and then click OK.
NoteWhether you select Standard or ClearType from the list, you must have a video card and monitor that support a color setting of at least 256 colors. You'll get the best results with High color (24-bit) or Highest color (32-bit) support. You can change color quality in Display Settings in Control Panel.
Open Display Settings by clicking the Start button , clicking Control Panel, clicking Appearance and Personalization, clicking Personalization, and then clicking Display Settings.