I've had this problem for quite awhile now and have found no help or answers. The driver called SDA Standard Compliant SD Host Controller shows up in the "Safely Remove Hardware" but I have nothing plugged in. If I click remove the SDA, it goes away until I restart my computer and it'll show up again. I don't even use SD Cards so should I uninstall this driver? I don't remember installing anything remotely close to this when I reformatted my Mini 9.
http://i50.tinypic.com/2uy535w.jpg
& also whenever I minimize Firefox and come back to it. My keyboard won't work. I have to refresh the page and it'll work again. This usually also affects the side scrollers on the touchpad.