Lexar Card Reader (recently) not listed as Drive in Explorer

I have a Lexan dual-slot card reader that I use for downloading my photo's to my computer. I've had this for over a year and since I installed it, I would always see the drive letters listed in Explorer.

Recently, I tried to download some pictures and when I went to click on the drive letter to open the folder on my card, the drive letter was not visible.

I must note that they show up as drives when I go into the Disk Management utility.

This is becoming a source of frustration and I need to know why this has randomly happened and how to rectify the problem. I really do need to see them listed as drives.

Cheers!

If it's USB connected, disconnect and plug it back in.
Or go to Device Manager, see if this reader is listed under USB devices, Right click it and choose Uninstall. Then reboot and plug the reader in after the reboot is done. Hopefully this will reinstall drivers for it.