Desktop display became darker

[Ray10X10]

Desktop display became much darker.

Windows XP2, MS Office Pro 2003,

Today my computer monitor, ViewSonic Professional PF 790, flickered,

and now my screen is much darker.

Even this dialogue box has an off-while color.

Please advise me how to change the brightness of my screen.

Thank You for your willingness to help me.

 

[JS]

Check the user's guide.
There should be a brightness adjustment,
you may also check to see if there is a Degauss option.
The above assumes you monitor is not failing, as a sudden change is not
normal.

PF790 User's Guide:
http://www.viewsonic.com/support/userguides.cfm?event=getUserGuides&serialNumber=pf790

JS