It was my impression that entering UOM manually was some new government mandate. If not, this is a bit of an avoidable pain. It does remember the UOM of drugs as they are prescribed since update to 11, so it will be less and less annoying.
Since it was taking 10 seconds for the Rx window to open prior to upgrade, it is still an improvement for me even with the added pull down and click....
But, I wholly agree that if this is not a mandate, then certainly it should auto-populate.
BTW, the ads on the login screen seem to be only for drugs. I want MOVIE TRAILERS! (Poll THAT, Gene!)