Can you verify these settings as well:
A. Specify credentials for the LANDesk COM+ objects by clicking on Start, going to Administrative Tools, choose Component Services, click the plus sign next to Component Services, click the plus sign next to Computers, click the plus sign next to My Computer, COM+ Applications, right click on LANDesk (you will also perform this task on LANDesk1), click on the Advanced Tab, place the Radial button in “Leave running when idle”, click on the Identity tab, specify a Domain Administrator and password in this user. (This will replace LANDeskComPlus, the new username must be in the domain\username format.)
B. Restart the Core Server.