I have a SDHC memory card from my camera that I want to view on my m6400. When I insert the card in the available card reader, nothing happens. Any suggestions?
Is this the first time you've tried to read this card, or have you been able to read SDHC cards in your laptop before? Do you have a lower capacity SD card you can test?
Please post back and let me know if you need more help.
I have a different model (XPS) but had same problem---all of a sudden computer was slow, and around same time card readers (all) stopped working.
Turn off computer. Unplug power cord. Wait 10 seconds. Plug back in. Fixed my problems. Really glad I tried that before uninstalling, etc. I'm getting the impression that whatever the problem..... try a simple unplug first.