Thanks in advance for any helpful replies... I am using an HP a1700n with Vista Home Premium. I cannot for the life of me figure out why my SD card reader will not read any cards. All of my drivers are up-to-date (I believe... I'm not sure exactly which device I am looking for in device manager). I downloaded and installed what I was told might be a fix (Texas Instruments PCIxx 20), to no avail. I would hate to have to buy an external card reader when I have a 9-in-1 built-in... and assuming I did, if this is a Vista problem, no guarantee even that would work. Any suggestions?