Problem with calling sqlplus from forms

Hi all,

	I am trying to call sqlplus command from the forms trigger 
	key-nxtblk.
	I am typing the following command
	host('sqlplus usename/passwd _at_test_report');


	It is giving following error
	frm-40811 shell command had error.


	I tried to execute 'finger' command, it worked.

	Please help me to overcome the problem.

thanks in advance,
madhu.

PS: Iam using oracle 6.0 Received on Mon Jul 11 1994 - 06:02:59 CEST