GPS tech (Garmin, Hammerhead, Wahoo, RWGPS, etc)

Brilliant, far too much information !

Restart OS X / Vista / the internet page you are on / the software you are using etc etc

Then reload it (or uploaded it) from the CD / DVD / internet / hard drive / device.

Do some other stuff.

Log in, log out, log off.

Press some buttons.

Some light are flashing and there is a man at the door what do I do now?