Hi Robert and Roman,
Thank you both for your replies.
I have confirmed that help desk role has allow access for Righ click menu, Distribute Software Update and Download Bulletin. but still has the issue. below is the the access denied picture and logs from the NS server.
Source: Altiris.Reporting.UI.ReportViewControl.OnLinkActivatedOpenWindow
Description: /Altiris/Console/Dashboard/DashboardView.aspx?ResourceGuid=XD40DC-003 (758529e2-3c9a-4737-86da-63fd2c40e595)
Source: Altiris.Reporting.UI.ReportViewControl.InitializeParameters
Description: Missing value edit controls for parameter. ParamName=_culture
Source: Altiris.Reporting.UI.ReportViewControl.InitializeParameters
Description: Missing value edit controls for parameter. ParamName=_neutralculture
Source: Altiris.Reporting.UI.ReportViewControl.InitializeParameters
Description: Missing value edit controls for parameter. ParamName=TrusteeScope