I had this problem too, installed all the relevant flash bits, but no youtube (just a blank where the video should be) or planet_rock (just a blank strip where the player controls are).
I tried deactivating nspluginwrapper in firefox but no joy. However, yum deinstalling nspluginwrapper has done the trick!
Everything now works fine
Last edited by gerryford; 04-17-2009 at 09:44 AM.
Reason: misspelt package name