I have not come across this before although another person posted a similar problem last week: my client's back-end (Access 2000) database will not open: it just 'fails silently', no error messages - you just have a blank Access screen, no project opens either. It's not possible to import the tables to a new database - nothing happens. However, the front end, already linked to this database, is working perfectly. In other words, you can access the data via the front end but can't open the back-end db. In my clients particular case the problem is that the data is replicated and they want to synchronise, which they can't do now. I can re-create their data via the front end but will then not be able to sync. Has anyone else come across this? I would be grateful for any suggestions. Thanks Ondine.