O2Micro Memory Card Reader on Latitude with Windows 8.1

I have a Latitude E5520 and a Lattitude E5530, both have the O2Micro SD Memory Card Reader.  The reader worked fine in Windows 8, but after installing the 8.1 update, the SD card reader does not work at all when inserting a memory card.  There is no audible sound, no disk drive available in Windows Explorer, and in Device Manager, the O2 is not listed in "Storage Controllers" where it should be. 

There are two versions of the driver that I've found online on the Dell site, but neither one solves the issue.

I found this workaround, but it's not a very good one:

• In Windows 8.1, press Start button and type fix devices, and click Find and fix problems with devices in the results list.
• Click Next and allow it to check for problems.  It will come back with the option to enable the device Intel 6 Series/C200 Series Chipset Family PCI Express Root Port 6 - 1C1A or something similar
• Click Apply this fix
• When done, close the troubleshooter and open Windows Explorer, and you should see the card reader
• In Device Manager, you should see O2Micro Integrated MMC/SD controller and O2Micro Integrated MS/MSPRO controller

Now, here's the bad news - after you reboot, or even go into sleep and come back out, the card reader is gone, and you have to do these steps over again.

If anyone has a permanent fix, I would love to know what it is!

-Dave