So I received my 2012 product today (ACA 2012) so I thought Id be a keener and install and take a look as we're deciding which version to upgrade too.
I was in the middle of the 'configuration' when I hit the button to check for updates and the whole installation disappeared! Cecked Task Manager and sure enough there was nothing running.
Mucho impressed so far.
Anyone else try yet?
Same thing happened to me when I tried to install Design Review 2012. Try to install Microsoft .NET Framework 4 (Web Installer) previously:
i may solve your problem.