We’re switching from Thunderbird to Outlook at work. Why, I don’t know, probably because some executive accidentally installed it when using a Student copy of Office 2007 and was attracted to the bright color and total lack of functionality.
So, I had to take a two hour training on how to use Outlook going through such tricky things as how to open email, what the preview pain is, how to send email and using advanced options like changing from one poorly rendered font to another (I’m confident that I could remove all fonts except for Calibri, Comic Sans and Impact and no one woudl notice).  The rollout was supposed to come automatically but something didn’t work out. I was confused when a man came around to “deploy it” simply by inserting a thumb drive into my machine and running a shortcut to a network location. I’m not sure what’s more tragic, a rollout failing because people somehow failed to click a link and type their name into a prompt or that a Microsoft certified System Engineer had to come around to “fix” it.