COPY command

Hi,

i try to load a file into temporary table but it gives me an error . do u
have any idea/solutions ?? the command that i've running as below :

dwnc=# copy biosadm.custdo_temp
dwnc-# from '/home/bios/customer_data/CustomerDO_new.CSV'
dwnc-# WITH DELIMITER ',' ;

ERROR: copy: line 141, Extra data after last expected column

FYI, my file was in comma delimiter type (csv) . My table structure as
following :

dwnc-# \dbiosadm.custdo_temp
Table "biosadm.custdo_temp"
Column | Type | Modifiers
----------+-----------------------+-----------
dono | character varying(13) |
dodate | date |
custname | character varying(70) |
custlo | character varying(40) |
attnto | character varying(80) |

Please guide me . thanks