Errors when using multifunction DAQ

[peruron]

Hi all,

I'm relatively new to NI and DAQ especially. I'm trying to enable the usage of a multifunction DAQ in one of our programs. As a reference I used the   

AIContAcquisition example supplied by NI.

When I run my code I get 2 errors (each time I run it I get one of them):

- Access violation exception was unhandled by user code, Attempted to read or write protected memory (when I call reader.EndReadMultiSample() ).

- Task specified is invalid or does not exist. Also when calling reader.EndReadMultiSample().

I'll appreciate any help or directions.

Thanks,

Noa

[P.Sanders]

what daq device are you using?

[peruron]

The box itself is numbered 1033, the cards are numbered 6281. I hope this helps.