if you want to rollback your installed driver from 14.17 back to 14.16, for windows XP operating system try opening your control panel then open administrative tool, then click system or computer (if I'm correct), below that you must find the device manager yourself then open the graphics display adapter then open the driver section then click the rollback driver.For windows 7, the same steps, just skip the administrative tool, then go to system security, then click system and so on....
