Windows media driver 7 2 7000 11

After an auto-update and reboot, a Dolby error popped up saying "The current Dolby audio driver is 7.2.8000.13 and the software application expects driver version 7.2.7000.11. Please install a valid driver and software application combination." What can I do? I can't find any downloadable updates anywhere.

This is on a brand new machine from Staple, where all that was downloaded was the updates from Microsoft and Lenovo. Now Media Player doesn't work, apparently because it is looking for a less recent media driver.

I have searched the lenovo support site and they do not have anything that references this issue or a driver download that I can find to go back to the old driver.

Anybody got any ideas??