Sometimes with a fresh installation of Fedora, you'll not be able to see the mouse on the desktop. Here is an url invisible cursor in Fedora , which gives the information about how to solve it.
If you have just installed Fedora (or any other distro which uses xorg) you may have encounter the problem by which your cursor works, but you just can't see i: that is you have no cursor. The solution is fairly simple.
Open for editing the xorg config file as root. It is usually located at /etc/X11/xorg.conf . Locate the device section of the configuration file.
Add the following entry into the device section (on its own line):
Option "SWcursor" "True"
Restart the computer (or just xorg). Your problem should now be gone.