CF slot not recognised in USB 3.0 card reader Windows 8

I report the same problem. My SanDisk card reader (USB 3.0) has worked well under Windows 7. I have just upgraded to Windows 7 this afternoon, and the CF slot no longer works. The SDHC slot is still fine. I think there is incompatibility between this reader and windows 8, on the CF slot. Can someone at Sandisk try to reproduce this problem? It’s frustrating as this reader is the only way I have to get photos into the desktop PC.