Hi,

I use VZ Navigator on my Blackberry Bold.  It works well and I have never had the sound issue you describe.  That must be a setting on your device, perhaps in the application modue itself, that can be set to allow for the device to be "always on" while VZNavigator is in use.  What version are you using?  I am using the 6.2 version on my device.  As for the giving an instruction to turn after you have passed a street that is intended for you to turn, it sounds like maybe a processing issue with your device.  I do know that mine tells me starting in 1/2 mile to prepare to turn at at particular waypoint.  It will also remind you as you become closer.  I guess for now, the only thing I can think of is to make sure you have the latest version of the program on your device.  I hope this all helps you a little bit.

Doc