I have several users (on runtime) that use the same front end file. It contains a single form that links to tables in the backend file on a network drive.
One user started getting errors this morning (though it worked fine previously). The error message is that there is a type mismatch somewhere in my After Update event procedure for a listbox. This error wasn't coming up before (nothing was changed) and other users with the same form/front end are not getting the error.
I hit F9 (in runtime on the PC with the error-producing form), the mouse icon changed to an hourglass for a few seconds, now it works fine again. What did I do by hitting F9?