my wife was driving her rcz on friday and the digital dash has stopped showing the speed and has a line going from one side to the other,, any ideas? she got in it on Monday morning and on opening drivers door the window went down about 2 inch as normal and then when she got in it stayed 2 inches down instead of closing back up. it remained like that until I came in from work and pressed the window up button for about 10 seconds, the window then closed but now it wont go up or down. any ideas???