Hi Susan,
You'll be please to know that when we finally start shipping Adagio Receivables V9.0A and all its associated upgrades, that this problem will be a thing of the past as we have move the most recently accessed and previously accessed list of datasets to be stored by user (instead of globally).
I really hope that you'll start to see these releases appear very soon. We are running them in-house.
_________________________
Andrew Bates