Odd Problem - Solved

[I_Got_This_Name]

Sometimes, letters don't show up when I type them into the text fields on the board. This doesn't happen anywhere else (if I type out a post in Notepad beforehand it works just fine) and also, oddly enough, every letter shows up just fine (albeit reverse capitalized) if I hold the shift key while entering it. Is this a problem with my keyboard or a board issue? How can I fix it? Should I just type in notepad or learn how to type with capslock on and hold shift?

Letters that don't work: T, H, C, V.

Edited: Solved. I tried the obvious: closing and re-opening my browser. It was, therefore, probably on my end.