You can also Highlight the the text in the textbox by dragging your cursor over it while holding the left mouse button. If it highlights then it is there. If it will not highlight then you have another problem and it may be as 'aprilgem' said. Try to apply a style to it and check if it is there also!!!
Merry Christmas!!!!

I would rather be Politically Incorrect,
Then have Politically Correct-Incorrectness!!!