copy into failed to import table

I created a table with 43 columns.  The table contains char, varchar, and tinyint datatypes.  I am running on Windows Server 2008 R2 64bit. The file contains two rows and is comma separated.  The file is BCP output from MSSQL. When I tried to bulk load into the table from a file with a COPY INTO command I got an unhelpful message. "failed to import table" How can I find out why the import failed?