imac hangs during 10.9.1 update restart
My late 2012 iMac has hanged during the installation of 10.9.1 .
It has a small window saying "restarting" on the usual dark grey background, with the blue and white barber pole progress bar not moving.
Should I just force restart it with the on-off switch at the back?
I hate to do this during an installation.
Need an answer in the next 5 minutes!
iMac (21.5-inch, Late 2012), OS X Mavericks (10.9)