Many Thanks for all of your Advice. Hopefully this post will be of use to others looking to do the same thing.
It all looks very scary and I think i'll just c/o a query every 30 days. :)
I'm fairly new to Access but gradually getting my teeth in to it.
I'm trying to design a database for our tools at work. Some of the tools require a yearly Calibration. Is there a way of linking a "date due" field to the Outlook calender so that it pops up a reminder 10 days before hand letting...