generqte a PWM signal with LabVIEW using digitals outputs

Thanks, I found the switch and I can now communicate from LabVIEW to my PXI-6070E card through the digital output. But it still doesn't work with both your programs because of a sample problem. I attached the error message box. So, I' d like to know if you have ever tried your programs with DAQ devices, and if it worked. Which devices did you use? And which version of LabVIEW?
Thanks again