Pages not showing in dashboard but are on database

The pages don’t seem to be showing in the dashboard but the data is there in the database. Some of the posts are there but not all. Could this be linked to an upgrade to 3.3.2 which I’ve done recently? I’ve deactivated plugins and that doesn’t seem to work so wondered if it could be related to the upgrade. Anyone have this problem or know how to sort it?
Thanks!