Check things like font size, stroke width and so on. Reset the character panel if necessary. For anything beyond that you have to provide soem useful information like system, bversion of AE, font used, language settings and so on.
And one more thing: Obviously black text on a black comp background won't be visually discernible, so use otehr colors.
Thanks for your help!!!! I had to re-install the software. Certain things were not showing or activated on the panels.