Phone Suite and Voice Command do not change volume icon

[tabasco]

The strangest thing -- my XV6800 with MR1 has Voice Command 1.6 and Phone Suite1.3. If I use either of these programs to change the phone ringer to vibrate, the speaker icon in the top display bar of the phone never changes. If I tap the speaker icon, the volume window shows that the ringer volume has been reduced to zero, but it does not go into vibrate mode.

I have uninstalled Phone Suite, but that hasn't fixed it.

Any ideas?