Open the VI you're having problems with. If it contains a Call Library Node function, then you have an IVI driver and cannot look at the source code because it was written with LabWindows/CVI and all the LabVIEW VI does is call a DLL created by LabWindows. There is a native LabVIEW driver (ag33xxx) that you can easily try and see if it causes any problems. It's possible that there is a bug in the IVI driver or it's not being used properly. If there is a bug, you can't fix it. If there is a bug in a LabVIEW driver, you can.
