http://blogs.technet.com/deploymentguys/archive/2008/10/15/sccm-2007-sp1-and-the-run-command-line-bug.aspxIn SCCM 2007 SP1 the console will experience an error when you try to edit a Run Command Line step that was created in SCCM 2007 RTM. This can occur if you upgraded from RTM to SP1, if you import in SP1 a task sequence that was exported from RTM, or ifen-USCommunityServer 2.1 SP1 (Build: 61025.2)