I have a picoscope 4424. I see that it has 80MSPS capability. But when I try to program it using LabVIEW, the smallest valid timebase I get is 2, which reduces the scope's capability to 20MSPS. Every time I try to set the timebase to something like 1 or 0, I get an "invalid timebase" error. I have used the example RapidBlock code and I've even set the "four channel device" setting OFF. But still I can't get the 80MSPS rate. Why?