have you tried rolling back you drivers.
For Windows XP
1. Click Start, and then click Control Panel.
2.Click Performance and Maintenance, and then click System. On the Hardware tab, click Device Manager.
3.Navigate to the driver you wish to roll back, right click the name of the driver and choose Properties
4.Click the Driver tab and then click Roll Back Driver
For windows Vista & 7
1. Open Device Manager by clicking the Start button Picture of the Start button, clicking Control Panel, clicking System and Maintenance, and then clicking Device Manager.
2. Double-click the category containing your device driver, and then double-click the name of the device you want to restore to a previous driver version.
3. Click the Driver tab, and then click Roll Back Driver.