Hi,
The PC is shown to be online and status as ok in the UTM, but the Sophos status on the PC shows updating failed.
I have reviewed the Sophos log on the PC and there aren't any obvious error messages about updating.
I have installed the slim version, the the full version over the top and then repeated the full installation this morning.
The PC is XP SP3 running in a VM (parallels 7) on a MAC Book Pro. The ethernet connection is in bridged mode.
Ian