@Sparkydude
[Only registered and activated users can see links. ]. The second method in that post (for nuvi 2xxx/3xxx) is applicable to your DriveSmart. Clearing nonvol is more comprehensive than a reset and will clear out irrelevant and possibly corrupt data from the non-vol region of the device's flash memory which may be confusing the device. Leave it outside with a clear view of the sky for to up to 20 or 30 minutes as it needs to completely rebuild the satellite data.