SD cards no longer being recognized

I had 2 different cards in, and checked their photos. I knew to click on the icon on the bottom, clicked on the device, and then clicked on eject. Now neither card is being recognized in My Computer. I'm afraid to try my 3rd card. I tried restarting the computer, but no change. Are the cards toast? Data lost? How did this happen and what should I do? Probably dumping IE 7 tomm.

 

What is the make and model of your pc? What version of Windows are you running (including Service Pack)? You mention IE7 so, I'm presuming you're running Vista.

 

Are you using an internal or external sd card reader?
If internal, reboot the computer then try the same two cards again.

oops, I see you have already rebooted.

Are the cards recognized in the camera?

 

I'm running Windows 7 Home Edition with Service Pack 1 and IE7. The computer is an HP p6610f. It is an internal reader and I did try rebooting the computer. It's frustrating that it worked to initially read them and then in the same sitting they weren't recognized. At least I was able to put the cards in a laptop and they worked there, so my deer pictures aren't lost.

 

Remove all of the SD cards.
Run USBDeview
Find the card(s) in the list.
Right click > Uninstall selected device
It should now reinstall the driver when you put the card in the reader.