Vista - new user profile created at each login

Hi Group,

I have this issue where at each reboot, my users profile is being created
after
each reboot. The desktop has to be reset and all the icons must be changed
to the way they were before the machine was rebooted. The machine is a member
of a domain and this user account has domain admin rights within active
directory. Is this a known issue or a small
bug and has anyone come across this issue with a fix somewhere.

Thanks,
Ron