Max(FirstDate) excluding last month using set analysis
I've been trying to work this one out all morning, and have done a search but can't find anything I can understand that answers this question. I'm pretty sure I've asked it myself, but can't find it on my dashboard :S
I have a list of clients, and a each client has various 'FirstDate' listed against them.
I want a straight table to show the max(FirstDate) excluding all where that max(FirstDate) is within this current month. I've tried with set analysis, using variables, using MonthName() and MonthStart(), just can't get it to work.