I'm seeing mswin_check_lm_group.exe Can't find DC for user's domain 'cdltd.co.uk' in the cache.log file. Does the program try to contact the domain on startup? Does each child try to contact the domain? Is this error a reflection of a failure to connect to the domain for a single connection? Basically, how severe is this error? Are one or two expected? Should I only worry when I see a cache.log swamped with them? Or is this a major concern? Paul Cocker IT Systems Administrator IT Security Officer 01628 81(6647) TNT Post (Doordrop Media) Ltd. 1 Globeside Business Park Fieldhouse Lane Marlow Bucks SL7 1HY TNT Post is the trading name for TNT Post UK Ltd (company number: 04417047), TNT Post (Doordrop Media) Ltd (00613278), TNT Post Scotland Ltd (05695897),TNT Post North Ltd (05701709) and TNT Post South West Ltd (05983401). Emma's Diary and Lifecycle are trading names for Lifecycle Marketing (Mother and Baby) Ltd (02556692). All companies are registered in England and Wales; registered address: 1 Globeside Business Park, Fieldhouse Lane, Marlow, Buckinghamshire, SL7 1HY.