Continious aquisition error

Hi

I am measuring 8 analog signals with pci1711L card using command mode.But when I try to use this programme in more than one aquisition is is giving error as error no 16 resource or device busy.The os is fedora core 1 with  2.4.22 kernel.

vanita

************************ D I S C L A I M E R ************************************
This message contains confidential information and is intended only 
for the individual named. If you are not the named addressee you should 
not disseminate, distribute or copy this e-mail. 

Please notify the sender immediately by e-mail if you have received this 
e-mail by mistake and delete this e-mail from your system. 
**************************************************************************************