C3-00 Text Input Language Problem

I cannot input text in Urdu language. Urdu language works fine in phone menu but when I change language to Urdu in Create Message it only types Arabic characters. Urdu text messages are displayed properly in my Inbox.

My phone software version is RM-614 V 08.65 dated 12-05-2011.

I would be very thankful if you can help me solve this problem.