What I've observed when this error happens, is because of:
1. The Altiris ActiveX controls are not installed properly
2. The ActiveX controls could not be installed because of the lack of local Windows administrator privileges of initially opening the Altiris console.
Ensuring that I have the privileges to install the controls and deleting all browser history in IE made it work for me.
Did you encounter the same problem? How did you solve it?
