No, just a mis-match of the video driver by Fedora. Pretty common in Linux because standard distros use generic drivers.
Press ctrl+alt+backspace should drop you into a terminal mode.
You can then run "xorgconfig" to select the video and alter the monitor frequencies. Having saved the file, which is /etc/X11/xorg.conf, you can try to go back to the desktop by the command
Repeating the above until you got a match.