Text box problem for Photoshop Cs6

when writting in a text box whenever using punctuation it always go to the beginning of the sentence. FOR EXAMPLE (?what time is it)

i have tried changing the text engine option to East Asian and then restarting photoshop, but when reopening my exisitng work, the problem still remains.

However when creating a new document the problem is gone, however i want to resolve the problem with my exisitng document i have been working on.

thanks

i have photoshop cs6 btw