http://www.symantec.com/connect/forums/transaction-process-id-was-deadlocked-lock-resources#comment-5797931 says his deadlock issues were caused by trying to delete computers with pending jobs. Once he cleared the pending jobs before deleting the computer, his deadlock issues went away.
My question is what happens to inactive computers that are supposed to be automatically removed after XX days (as set in Tools\Options\Global)? Are those pending jobs removed automatically first before the machine is removed? Could this be a cause of our deadlock issues?