So, now any 'mouseover' messages are unreadable. I have a very dark grey background behind black text. Resetting the Firefox 'skin' choice had no effect on the mouseover information boxes. Even in the default skin, the mouseover message appears with a dark grey background with black font. I checked the OS settings to see what the default 'mouseover' settings are, and they are a beige background behind black text. In all other applications, and in other browsers, the mouseover is working normally. How do I reset the mouseover text/background? I need either white text, or a light background. I have included a screencapture of the mouseover box for your examination. You can see it is tantamount to being utterly illegible. Thanks in advance, BH.