Locked out keyboard after serial read

[tmarshall07]

I'm working on a macbook and have a serial read program that works fine except after you stop the program. It reads voltage input from an instrument via USB. The code reads from serial ports on my computer, and to make it work I had to download a VCP, virtual COM port driver so it would read in the data. As I said, the code works fine and produces a nice chart while running, but as soon as it finishes it locks out the keyboard and trackpad of my computer. If I plug in a mouse I'm still able to control the computer. I have no idea why its doing this, any ideas would be appreciated!!

[NIquist]

This likely has nothing to do with LabVIEW.  I've seen similar issues with those USB to Serial adapters and usually just switch to another brand to fix the problem.  You can also check into the MAC equivalent of Windows Device Manager and see if you can change the port number so it doesn't conflict with your keyboard.