We made some measurements with an AT-MIO-16E-2 board and a LabVIEW program (version 5.0). We use the subVI Waveforms for an aquisition at 300Hz of 51200 samples. The program used to work perfectly but now the number of samples is 2048 and sometimes 4096. NOTHING in the program was ever changed and there is no error or warning message (or dialog box) of any kind.
Does someone have any idea of where the error can be? The versatil behaviour of the program (without changing anything) seems to indicate that there could be some non initialized variables with random value somewhere, or a bad access to the memory (but the program we wrote does not call any C subVI). Or could there be a hardware problem? Or some installation conflicts on the P C (we reinstall LabVIEW to make sure, but it is true that some other program installations were done in between).