You could (as always in case of unexplainable Photoshop-behaviour) try trashing prefs by keeping command-alt-shift/ctrl-alt-shift pressed while starting Photoshop after making sure all customized presets like Actions, Patterns, Brushes etc. have been saved and making a note of the Preferences you’ve changed.
Other than that check out the thread linked to in post 6.
" If I was trying to write "The year 1995", when typing the first number, it would automatically go to the front of the text and look like "1995 The year". The same rules apply for any punctuation I use at the end of sentences.
Also, if I was trying to highlight all of the text, what would be highlighted would either be "1995", "The year" or the space inbetween "1995" and "The". It isn't possible to highlight every word in the text. Another thing is that the blinking line where the text should type is always at the beginning of the text unless I hold the right arrow key. "
same problem as mine
i tried from the solution in this post http://forums.adobe.com/message/4653327#4653327#4653327 but still its not working..
You've reset your Photoshop preferences? You didn't make that clear. If not, do so.
You've tried setting the text options ("East Asian").
Seems like what's left are these things, in no particular order:
-Noel
North America
Europe, Middle East and Africa
Asia Pacific