issues with host profile in 5.0

Hi,

I seem to be seeing some strange behaviour on host profiles and autodeploy in 5.0.  I have now edited the profile, gone to security and set an administrator password numerous times, applied the profile to the hosts but it keeps going back to leave password unchanged.  I have a 5.1 lab and when I change the password it seems to work..  I haven't applied any updates just yet, perhaps this is a bug?

Thanks

Bill