Minor installer bug says game is at 106%

Ran the whole install from downloading the install client to complete download in one go, instead of clicking play when it was partway done, and it installed to 106%.

http://imgur.com/3M1bY

I didn't do anything special to make this happen, I just downloaded and started up the installer and let it run while I went about the house doing householdy-stuffs.

Windows 7 64 bit, Radeon HD 4870, 8GB RAM, 2.3 ghz quad-core phenom