Well I use my PPC primarily as a GPS with the Delluo Routis software. I was very happy with the set up :D until one day all of a sudden I lost voice prompting

while driving around.
First I thought it is the Rotis problem, so I de-installed and re-installed it again, no result still no voice prompting. Then I did a hard reset to my PPC and re-installed Routis on a fresh blank PPC, but still no voice prompting. I have no idea what is going on

, can anyone help me out?
Thanks!