RDWEB and cross-domain authentication (problem exsists in R2)

i have few users need access application on terminal server (windows 2008 r2) if user logs on directly terminal server has no problem.

when logs on rdweb page displays no icons. authenticating agaisnt domain form terminal server hosted. have tested windows 2008 ts server prior r2 , worked no problem.

i see when user logs on rdweb has security audit failure event id of 4265. when logon user on same domain ts no probelm whats ever.

i have tried adding terminal servers windows authorization access group no avail.

i tried changing rdweb apppool use network services identity no go.

i have published the remote application just users user, still no icons in rdweb.

any idea on should @ or change.

thanks
judd 

sorted problem

you have allow terminal server machines rights check users on other domain. had speak administrator of other domain create group terminal server machines in , give access authenticate users on there domain.

Windows Server  >  Remote Desktop Services (Terminal Services)