Resetting GPS on Sprint Touch Pro?

[a_c_s]

Hi, does anybody have advice on how to reset or rejigger the GPS settings on the Sprint Touch Pro. It was working fine last week, then while away on a trip this past weekend, all of a sudden just completely stopped...nothing can find a lock on satellites...Garmin, Googlemaps, Sprint Navigation...they all search and can't lock...so I know it's not an issue within a particular program...any advice would be greatly appreciated...hoping it's a simple fix that I just haven't found yet...already did a search and didn't turn up anything in recent threads, so sorry if this has been discussed recently...