XP Pro

Things to know about the accessibilty Wizard locaed under Start > Programs > Accessories > Accessibility

When this setting is enabled you will loss the ability to see the cell colors in Excel.

http://www.disability.illinois.edu/services/at/index.php?sub=34

To restore the cell colors in Excel:

Start > Control Panel > Accessibility Options > Display tab > uncheck Use High Contrast

http://support.microsoft.com/default.aspx?kbid=833258

Another place to control High Contrast:

Display Properties > Appearance tab > Windows Classic Style > then High Contrast