I'm using GV on SP1. I've been trying to turn off VM indicator and stutter dial tone, and have unchecked MWIEnable, X_VMWIEnable, and MessageWaiting (individually and together, multiple times), submitted the changes, and rebooted (through the web portal, by dialing ***9, 1, and by turning off power), but each time it returns to the default with all the boxes checked. Any suggestions? My firmware is updated.