I'm trying to learn how to use spatialite databases, so have made a few experimental ones. When I delete them, however, they still show up in QGIS's DB Manager. If I try to open them it comes up with a 'database does not exist' type error, but it will not let me delete them, or update itself. Worse still, I created a new spatialite layer in QGIS and named it the same as an old one (but in a different file location). Now DB manager just shows me the old one.
How can I get DB manager to update itself?
I've tried the obvious refresh button, but to no effect.