cossie connoisseur

the car is a 1999 car by the way :-)

This started last month and what happens is the following... Driver's window will not work, sunroof opens but after a few seconds will close again. The way i cure it is to disconnect the battery for 30 mins then everything works again...however after a couple of days the problem will return. does anyone have any idea what is causing this in the first place and a perminant cure? many thanks nick