There is a conflict between the drivers for the TI USB Graph Link cable that are installed with Graphical Analysis 3.0 through 3.1.1 or Logger Pro 3.1, and the drivers that are installed with TI Connect 1.2, 1.2.1, and 220.127.116.11 on any Windows computer. Having TI Connect 1.2 or 1.3 on a machine will break the use of the TI USB Graph Link cable in Graphical Analysis 3.0 through 3.1.1 and Logger Pro 3.1.
These problems are completely resolved by using Graphical Analysis 3.2 through 3.4, and Logger Pro 3.2.1 or newer. The Logger Pro update is a free download:
Note: Graphical Analysis 3.8.4 doesn't support importing from TI Calculators.