I am running BL3 under Win 7 32 bit. I have 2 34970A's communicating on GPIB.
I can start both of them scanning with the run all button several times, but after a while only the first DAQ will start and scan. When I try to stop them, one of them stops but the other one still has the running box there in BL. If I click on that, I get the message "MSG_STOPPING_UNDER_PROGRES". The only way to stop this issue it is to shut down BL and restart it. Then it will work fine for a few times, then start acting up again.
Edit: 34970 was 34972