any of the programs listed here http://wiki.thebuddyforum.com/index...ams_that_Interfere_with_BosslandGmbH_Products installed? have you tried a fresh installation?
Yes I have done a fresh installation of both WoW and HB. My client worked perfectly fine till I downloaded a trial for Raid Studio / Pandaria Bundle off the Buddy Store. I will check those programs and make sure they aren't running when my wow is.