suddenly lost phone ringer - help, please!

[jfolliard]

my 6800 suddenly stopped audibly ringing with incoming phone calls.

The settings in settings/phone show:

Ring type:vibrate then ring
Ring tone: Ring-windowsmobile

I've double checked and it's not in vibrate or airplane mode.

Now here's what's interesting - when in the settings/phone screen I can adjust the menu items BUT when I hit the OK hard key or the OK button in the top right corner, nothing happens. the screen isn't totally frozen as I can adjust the ring type, ring tone, etc. but it doesn't seem to want to get off that screen. I can hit the upper left windows button to get back to the start menu OK.

Now when I do change the ring tpe and/or tone, since the ok button doesn't work, I hit the windows button to get off of that screen and reboot - but going back into phone/settings my changes don't take.

weird stuff.

any ideas?

thanks.

Jack