So I have an SD card reader slot on my laptop, an Acer Aspire 3690, when I put a memory card into the slot, it doesnt read it or even acknowledge it. When I open My Computer it doesnt show up at all. I can see and read it on my pc, but seem to have trouble with it on my laptop, where I want to use it. I have searched for any kind of driver updates or downloads but haven't found any kind of solution or answer to what the problem actually is or how I can fix it. Can someone please help me?