Missing “Visual” and “Code” tabs

Hi again all:

This is probably another easily-solvable question, but I’ve got three installations, on three different domains, running of 2.1. The first has the “Visual” and “Code” tabs above the text box when writing a new post, and the other two don’t! I can’t figure out what’s different…I used Godaddy’s auto installer for all three…am I missing something?

Any suggestions? Thanks in advance!

-j

PS: I just realized I’m missing a number of things, such as the “+” buttons for each section, or widget, on the page, and the section under the posting area is a preview of the page, and not the exceprts, trackback and custom fields areas.