Im trying to install Fedora 20 i386 DVD on VirtualBox 4.3.8 and on booting from the installation DVD I see a message [0.000000]tsc: Fast TSC Calibration Failed. The installation then carries on and takes c.2hours to complete but the OS will not boot afterwards and I see a message "Oops there was a problem. Contact your administrator" I am leaving all of the settings at default in Virtual Box ie768MB RAM and 8GB Disk Space. I've re-burned the installation DVD and currently re-installing the OS in VBox using the facility to test the installatin media then install, hoping this will work. Does anyone have any further ideas please.