I'm getting the same issue, I was trying to load my GPS for a trip to Houston. A work around, but not ideal, is to input the Coords manually into your GPS
I may do it for a few, just so I can do some hunting here in Houston.
This message comes up when I click on "Send to GPS"
500 - Internal server error.
There is a problem with the resource you are looking for, and it cannot be displayed.
Using all, Firefox, Safari, and Explorer