Appearently there was an update and now neither my firefox or thunderbird screens are readable all of the graphics are good but wherever there SHOULD be text there are simply black marks in place of words so i have no access to any browser or e mail on my other compnuter.... At first I got XPCOM not loading error messages but now this happens..... any thoughts, suggestions, or fixes? Then I got an error message that I think said something about mozilla can not find a useable font....yet the default fonts are installed on this computer and everything else works but any MOZILLA PROGRAM