Reset analog output buffer position

[Brad99]

I'm using LabVIEW 7.0 with a PCI-6111. The problem I have is that when I download a new waveform to the output buffer it may not start at the beginning. My guess is that it is starting at the same point in the buffer as where the previous waveform finished.

Is there a way to reset the position of the analog output buffer? Or some other way to force a new waveform to begin at the beginning?

Thanks for the help.