Language Format Problem while adding data

Hi all,

I am using visual studio 2008 with SQL server 2008 ..

In my application when i am trying to add record in my grid view while adding record i change my text language from default English to Arabic want to add text in Arabic language in grid view

After adding record the Arabic written text will show as ??????????? mark in output form as well as in SQL server database table.......

Question is that why the Arabic text is not shown in his actual form instead of ???????? in grid view as well as in Data base table......

Please help to solve this problem

It's Urgent...

Thanks for advance Help

Regards
NAEEM