I did Control T and it just opened up the text window. I have the settings for the text to be at a low, visible size. I've changed the text size multiple times and it doesn't show up still.

and change the color before using text, or highlight it then change the text.

whatever color I chose, doesn't show up.

MAKE sure the layer you are working on is highlighted in the LAYERS pallet.

I am; the layer label on the pallet says whatever I type in, but on the image window itself it's not there.