ALV Output in Background is not coming fully

Hi Frnds,

When i executed the Z report, ALV grid output is coming with all columns as i specified in the report.

But, When I executed the report in the background ALV output is coming as the List with only some columns.

My problem is... Not able to all the columns in the output of spool.

what shall i do to get the all the columns in spool?

Regards,

Sunny