unfortunately I can't attach a screen capture as this would explain the problem better
In the colors form there are dozens of items which can have their color customized.
When I change the color of an item from default, the button text eg. saddle or frame or spoke, turns to a shade of white which is so similar to the button color that its almost impossible to discern the text any longer.
I'm sure at one stage the button color changed to the customized color, but now they are all just a creamy color.
I'm running Windows XP SP3 with fairly old graphics card, using plain uncustomized Windows color theme, can't think of any other color/ graphics related problems.