[shtirliz]

Had the same issue with stock Verizon 6.1 ROM. I guess one of the apps I installed did something with font settings.

Here is what I did to fix it.
1. Copy the "HelveticaNeue LT 55 Roman.ttf" file from \Windows folder to root (any place works, it is deleted at the end)
2. Rename it to "digital-7.ttf".
3. Copy the renamed file to \Windows\Fonts folder overwriting the one that is already there.
4. Delete the digital-7.ttf file from the root.
5. Done.

It will probably change the font in the app that is actually expecting this font but so far I had no issues.

EDIT: Figured out what app caused the issue. In my case it is TouchWatch2.
And, by the way, you need to soft-reset the phone after the procedure described. Forgot to mention that.