With 4.6.2 importing GPS data did not work -- PM would freeze when clicking on the plot button.
4.6.2.2 would import the data, but then would lock up later (e.g. when switching to a new folder in the navigator, something that PM normally does successfully of course).
Since I am working on some very important images, I could not risk the beta, so I am back with 4.6.1 which seem to work fine.
Windows 7 64 bit Home Premium.
Deven