What is your document resolution in ppi?
If you give complete and detailed information about your setup and the issue at hand, such as your platform (Mac or Win), exact versions of your OS, of Photoshop and of Bridge, machine specs, such as total installed RAM, scratch file HDs, video card specs, what troubleshooting steps you have taken so far, what error message(s) you receive, if having issues opening raw files also the exact camera make and model that generated them, etc., someone may be able to help you.
A screen shot could be very helpful too.
Please read this FAQ for advice on how to ask your questions correctly for quicker and better answers:
Here is a short vid of the issue, because (Don't laugh at me) I don't know how to take a screenshot:
Your video is way too tiny for me to see your settings.
One thing I can tell you, your text has to be completely selected, before you can apply any changes to it, like increasing its size.
I also have no clue as to the exact version of Photoshop you are using, such as Photoshop CC 14.2.1, nor as to the exact version of your OS.
At first the text was 1296 pt, and then it was 60. I'm on Windows 7, and I believe I'm using Photoshop CC 14.1.