Diane Poremsky [MVP] wrote:
are you using stop processing in the rules?

Yes, I've tried with "stop processing more rules", and tried without. It
doesn't seem to make a difference.

Just to clarify, in case I wasn't clear earlier. I have right now 6
rules, each of which matches one person in my address book and plays the
appropriate wav file that speaks their name. Each of these rules will
work if it's the only one enabled (with the check box in the rules
dialog box). When there's more than one enabled, then 99% of the time, I
get no rule match and instead I hear the system default beep. When no
rules at all are enabled, I hear nothing (no default beep).