while (!_ready)
{
        Thread.Sleep(100);
}  

Waiting for data... Press a key to abort

Waiting for trigger... Press a key to abort

Martyn wrote:Have you made any changes to the code, or compiled as supplied ?

Martyn wrote: What value is returned in the timeIndisposedMs value from the RunBlock call ?

      while (Imports.GetTimebase(_handle, _timebase, (int)sampleCount, out timeInterval, _oversample, out maxSamples, 0) != 0)
      {
        _timebase++;
      }