Had some funnies since Kernel 3.3.4-3.fc16.x86_64 #1 SMP
The Postfix service still under System V startup is failing to start on reboot and has to be manually started, this wasn't a problem until Kernel 3.3.4-3
This last reboot the system font setting had been lost setting for fonts, they where wrong.
Seemed tbe Sanserif font is a problem under English (Great Britain) was all blocky , have switch using "Font Tweak Tool" to Ariel for system fonts and get clear fonts.
This has never happened before kernel 3.3.4-3