Dear All,Salam,
when I want to upadate a filed with ntext data type with some Unicode Data 
with encoding UTF-8 in asp,I get an Unknown runtime error 

*************************************
Error Type:
Provider (0x800A4005)
Unknown runtime error
/update/index.asp, line 104

Page:
POST 423336 bytes to /update/index.asp
*************************************

I think this error probably related to capacity of this field Because when 
I update this filed with capacity lower than 423336(Postede Bytes) there 
is no error and all things are correct.I think I have an mistake in my 
DataBase Design...

can any one inform me how can I to solve this problme?

Thanks In Advanced
Mohammad