I have office pro plus x64 2013 updated 4-29-13 -2010kaiser volume edition. When i install it on 1 pc, it tells me activation failed and i have 2 days left. Further investigation shows it can not find a DNS name. I assume it is talking about a kms DNS name record. Anybody else use this version and experiencing issues? If i can't get this to work, can someone point me to a "good" working version?