itunes error 13005
I recently upgraded to the newest version of itunes (10.6) and now I am getting an itunes error 13005. I have my itunes running through an external WD Passport. I have read the threads on this and have tried deleting the genius/.itdb files and I am still getting the same error. I have also searched for .lock files as was suggested in another post, but I can't find any of those files. Help!!
macbook, Mac OS X (10.5.4)