My PC diusplay has corrupted, not what was, and cannot get it back fully to what it was (dialog boxes much too small; rest of display ok). Minded to replace driver. When do so, understand must delete existing (which is the same). But thought occurs - if I do so, will I still see what is on the screen, prior to installing new driver, i.e. for the period between deleting the one and replacing it with the other, I will not have a display driver, so why then should I still be able to see anything at all - no driver - or is this a daft question?