how to disable all caps text in photoshop

[JenniferJ]

I'm not sure what I have done, when I open photoshop and type on a text layer it is in all caps. How do I disable this? I am trying to write my email and facebook address in lower case so I can fit it all on my business card in a font size that is readable... 

[Damien Symonds]

Go to Window>Character.

In the Character panel, the "TT" icon (All caps) might be checked.

[JenniferJ]

Genius! Thank you. That was the problem!