InRoads Utilities Symbology

I am using Power InRoads V8i (Select Series 4) V08.11.09.789.

When I set the symbology for my utilities, using  the Create Utility tools and then the Edit Utility tool to edit the utility details, I am unable to either Save or Save As the modified data as a Preference as I get the message 'Preference not Found'.

This means that each time I opeen InRoads I have to update the Utilities symbology if I am doing anything which involes refreshing my Utility data i.e. upating the drainage profile. Does anyone else have this problem and any suggestions how to rectify matters?