delete function has changed

something changed with delete function. Previously, when an email was highlighted, either in blue or gray, I could hit delete and it would delete. Now, I must individually click each email before I can delete it. It might be highlighted in blue or gray, but it will not delete until I click it. That is a PITA. when I click on an entry it highlights in blue, then when I move pointer off, it turns gray. At this point I used to be able to hit delete and delete the item. I cannot any more. I must click it again to make it stay blue then it will delete. So it now requires 2 clicks then delete to delete. Once deleted the next item is highlighted in blue then gray. Again I must click it again to delete. If I select Close message window........... in Tools->Options->Display->Advanced, when I hit delete it will move to the next message highlighting it in blue and I can delete that one with a simple delete, but the next one is highlighted in gray and I must click it to blue to delete. Is this a new "feature" of the latest build? If so, how do I get the old feature back?