just bumping this up folks sorry.
i have also checked event viewer and there are no errors listed under the 'system' or 'application' tabs apart from one failed log on attempt by me at this time logged under the 'security' tab. as i did indeed fail to log in because this error came up before the welcome screen appeared im thinking its quite normal to see this listed here.
i have checked msconfig/startup and double checked this list with third party software and all i have loading with windows is as above ZA and AVG. my services seem fine to me in administrative tools and nothing seems to be out of place here. i have restarted and shutdown a few times today and everything seems fine.
scratches head :-)