Can't Update GTNXI PC Trainer

[GAJ1952]

The TDS GPS Manager version 1.0.1.6 indicates that the 'GTNXI PC Trainer' needs updating from 20.30.8.0 to 20.42.2 but it downloads to 88% then jumps to Installing, but then just hangs there with the word Installing.

All the other items update normally.  The TDS GPC Manager is the latest version and setup to run as Administrator.

What else can I do ?

Glen