Hi,
Method 1.
You can try using the Display Quality troubleshooter to automatically find and fix some common display problems.
a. Open the Display Quality troubleshooter by clicking the Start button, and then clicking Control Panel. In the search box, type troubleshooter, and then click Troubleshooting.
b. In the left pane, click View all, and then click Display Quality. If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
Ways to improve display quality
http://windows.microsoft.com/en-US/windows7/Ways-to-improve-display-quality
Method 2.
Also you may consider reducing the hardware acceleration and then check.
You can try changing the hardware acceleration and verify (You can try a different level too.)
a. Right click on empty space on desktop.
b. Go to Screen Resolution.
c. Then click on Advanced settings and click on the tab "Troubleshoot".
d. Set the hardware acceleration to medium. (You will get the option only if your Video card support its).
Hope this helps.
Thanks and Regards:
Shekhar S - Microsoft Support. Visit our Microsoft Answers Feedback Forum and let us know what you think.
If this post helps to resolve your issue, please click the "Mark as Answer" or "Helpful" button at the top of this message. By marking a post as Answered, or Helpful you help others find the answer faster.