Sails

G'day I have a 2002 Forester and today the driver's side window decided to remain in the down position (right side window; I'm in Australia). When i opened the window today the motor kept running after the window was down, and it wouldn't go back up again. When I try to use the switch to move the window it makes a whirring sound - like the motor is still operating but not grabbing anything. We've removed the interior door panel and tried to move the window by hand but it seems firmly in the down position. We've also tried using the window switch at the same time - again no luck. Over the last year the window has intermittently hesitated before operating when raising and lowering it. Possibly related? Does anyone have any recommendations for how to determine what has failed and how to fix it? Also, does anyone have a quick fix for how to get the window up again so I can drive it in the rain or park it somewhere unattended? Thanks!