Try installing the ST Microelectronics Free Fall Sensor Driver from the following link:
http://www.dell.com/support/troubleshooting/us/en/19/Product/latitude-e6320
Thanks.
But this was the answer I received from DELL and has worked.
http://ftp.dell.com/FOLDER01168946M/1/Chipset\_Driver\_XWJWG\_WN\_4.10.0036\_A05.EXE