Exclamation Tamil font problem in samsung galaxy s duos

Hi dude,

I'm having a different and serious problem. In my phone, when i type a message in TAMIL language, the words are not shown correctly (the problem is in my phone only, if i send the message to others means they'll receive the message correctly. But it's difficult for me to type. Attached a Sample picture,...)

I read in the forum, try to replace the system/fonts folder with the default samsung FONTS folder. So kindly any samsung galaxy s duos user, please upload the default FONTS folder, . Please do it ASAP... or otherwise give me a correct solution to solve this problem.
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