[Darkjedi]

That happened to me all the time. It would typically happen if I left the GPS on, went indoors, and turned on my phone to do something else. I guess if the GPS can't find a lock for a while it shuts down and you can't reset it without a soft reset. I learned to manually disable GPS whenever I don't use it or have to shut off my phone and go indoors and stopped having that problem on my Mogul for a while.