do you have Raptr or any program you use that attaches to wow maybe even nividia geforce experience etc
any of the programs listed here http://wiki.thebuddyforum.com/index...ams_that_Interfere_with_BosslandGmbH_Products installed?
follow the instuctions here on how to clear your caches. http://wiki.thebuddyforum.com/index.php?title=Honorbuddy:HelpDesk:Cache_corruption_problems after that run the wow repair tool from your wow or battle.net launcher to make sure your wow installation is complete.