Paul,
If you are using Access 2000 this is a known bug and is documented in
the Microsoft Knowledgebase article:
Q245021 'List of Fixed Problems in Microsoft Office 2000 Service
Release 1/1a (SR-1/SR-1a)'
And specifically:
Q240826 'Lost Printer Settings when Name Autocorrect is turned on'
Turn off the Name AutoCorrect feature as a temporary 'fix'.
Then download and install the Service Release 1/1a.
