Okay, gonna need some help on this one and hopefully before tonight. My computer's SD Card reader is acting strange. Until last week, it was acting fine. - Card is recognized by the computer as being in the reader. - No "DA-DUM" sound when inserted. - Card's drive spot on My Computer goes from transparent to solid once inserted. - Card cannot be formatted on the computer, card is not locked - Card can be read and formatted on other computers, as well as my camera. - No cables are loose, no connections are dirty. I've already checked those. - Other cards are not being recognized - External Card Reader does work, but I would rather figure out what is going wrong on my end before I buy an external reader. Could this possibly be Windows Update based?