A Small tip regarding rpm installtion of Fedora, whenever you are running rpm command to install any of the plug-ins or packages , you might run into transaction lock issue,
# rpm -ihv RealPlayer10GOLD.rpm
# error: can’t create transaction lock
Above is nothing but Super User access problem, All you have to login as Super user (su), like following.
# su
# password:[XXXXXXXX] <------------This will be invisible
# rpm -ihv RealPlayer10GOLD.rpm
# Installation….
A Small tip, but helps a lot for beginers