I'm currently unable to play dvds. In the device manager displayed under unknown devices is video controller (vga compatible) -- when i open the properties this message is displayed under device status "The drivers for this device are not installed. (Code 28) To reinstall the drivers for this device, click Reinstall Driver." I've tried to reinstall, but the computer is unable to locate such a resource. Is there any way I could download these driivers online or with a disc? Thanks in advance to anyone who can help.