try logging in to your zone, rather than choosing 'best latency', swap back and forth to dx9, run the buddy wizard found here on the forums. and if all that fails, download a fresh zip of the hb client and install in a new folder.
Please make a new thread in the Support forum. This thread belongs to Wezy, and has been resolved. When making the new thread, you will need to attach your full log associated with the event.