Hi,
- Did you make any changes to the computer recently?
Method 1.
a. Go to Control Panel then Hardware and Sound then Color Management.
b. Select your display device.
c. Check the box “Use my setting for this device”.
d. Click Add.
e. Choose “sRGB IEC61966-2.1”
f. Set it as default.
If the issue still persists, go to Method 2.
Method 2.
a. Go to your desktop and right-click.
b. Select Personalize.
c. Select Display Settings.
d. Click on the Advanced Settings button.
e. Click on the Color Management Tab.
f. Click on the Color Management button.
g. Select your Display in the Device drop-down list.
For additional information refer to the articles below. (The articles are published under Windows Vista category but holds good for Windows 7 also)
How to remove the association between the display and a color profile when pictures are being displayed with bad color
http://support.microsoft.com/kb/942632/en-us.
Hope this helps.