I’ve just discovered that when intalling Fedora 10 on some computer causes this problem. Problem start from instalation: there is no pointer for mouse in Anaconda and further in the system. It is a little bit dificult but install system with keaboard only, then when system installed and running do the following steps to fix this issue:

# yum install system-config-display

Open system-config-display and just press “OK” button. It will generate xorg.conf file in /etc/X11.
Then open /etc/X11/xorg.conf and in section “Device” add following two lines

Option     "HWCursor"     "off"
Option     "SWcursor"     "True"

Save file and restart your X server. It have to work now.