Spouse hasn't received I485RFE

Both my(primary) and my spouse(dependent) online case status (2/16/2005) says "mailed a notice requesting additional evidence or information in this case". My RFE letter arrived in attorney's office last Friday (2/18/2005), and the letter indicates the name, A#, receipt# for both me and my spouse, and requires my employment evidence. But till now we haven't received my spouse RFE letter. My question is: should we expect to receive my spouse RFE letter too? Or, since my spouse is dependent and already shown in my RFE letter, USCIS didn't actually mailed a separate RFE letter to my spouse?

Thanks in advance for any thoughts.