If all workbooks and worksheets, perhaps this fix...............

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

The fill color, the fill pattern, or the line color of a WordArt or
AutoShape object in an Office document does not change

As directed, change the High Contrast setting in Windows OS


Gord Dibben MS Excel MVP


On Thu, 26 Jul 2007 18:24:00 -0700, Kim wrote:

If I change the font color of an excel cell (for example A1), the color
change appears on-screen as long as I am typing in cell A1. As soon as I
move to a different cell (for example B1), the on-screen color of A1 reverts
to black. How can I keep the color showing on-screen? (the changed font
colors print oky, but don;t stay on-screen).