Everyone wants to take their shot at what's wrong with Microsoft these days so here's mine. Ribbon menus. I've long detested Microsoft's ribbon menu user interface. The biggest issue is what you once knew how to do, you now have to find again (and again). The net gain being a big net loss in productivity. How many of us have spent 2, 3, 5 or even more minutes trying to find some menu item that seems hidden on one of the ribbon tabs. I'm not trying to be a stick in the mud about it, I generally like trying new ideas but ribbon menus and me just don't seem to get along. To add insult to injury, enter Outlook 2010 and Windows 7 Paint.

Now in Office 2010, the application I probably spend 80-90% of my general computer usage time in, Outlook, has ribbon menus. Ribbon menus. These things are like Tribbles.

More: http://pcworld.com/article/170867/