My Microsoft Outlook ate itself.
Spontaneously combusted.
Kaput.
No worky.
I went to the Microsoft support website and followed the instructions how to clear the problem. Great, Outlook starts now.
...but it's starting from scratch.
No old emails.
No address book.
Nuthin.
Aaaaaand... it won't talk to gmail anymore. I checked and double-checked the settings, and it refused to connect to my gmail account.