I am on an Exchange Server.  I just switched to Yosemite (OS 10.10).  this happens on both my brand new iMac, as well as on my year-old MacBook.

My "Tasks" come down correctly from the server, but when I want to use the Smart Folder "Today", it  presents me with the "Due in 1 day" tasks.  If I want to see today's tasks, I need to choose the "Overdue" smart folder.

The only thing that has changed is the upgrade from Mavericks to Yosemite.

I use Touchdown on my Android phone -- and the tasks appear correctly sorted/categorized there.

Any ideas what's happened?

Thanks!

Gary