Abap Dataflow and special character

Dear All

On DS inside an ABAP DATAFLOW when In a text column there\ are special characters like "ò" or "°" or "è" the system provide the error:

"A row delimiter was seen for row number <149> while processing column number <1> in file <E:/BO/Z_ave_kna1>. The row delimiter

should be seen after <39> columns. Check the file for bad data, or redefine the input schema for the file by editing the file

format in the UI."

Db target is Sybase IQ.

My environment is BO 4.0 sp9

DS 4.1

can you help on this? any hint will be appreciated.

Thanks

Simone