Internal Card Readers Missing

Hi, Since upgrading from Vista to Windows 7 I haven't needed to use my card reader, until now but for some reason they're not showing. I have opened "Folder Options" and unchecked Hide Empty Drives and rebooted with the card in the slot all to no avail.

Can anyone suggest anything else to try please?

Thanks


Tech Support Guy System Info Utility version 1.0.0.2
OS Version: Microsoft Windows 7 Professional, Service Pack 1, 64 bit
Processor: AMD Phenom(tm) 9500 Quad-Core Processor, AMD64 Family 16 Model 2 Stepping 2
Processor Count: 4
RAM: 10239 Mb
Graphics Card: NVIDIA GeForce 8400, 256 Mb
Hard Drives: C: Total - 114370 MB, Free - 46567 MB; E: Total - 147756 MB, Free - 60040 MB; F: Total - 147492 MB, Free - 13127 MB; K: Total - 1907727 MB, Free - 1181042 MB; L: Total - 953865 MB, Free - 193735 MB;
Motherboard: Acer, F690GVM
Antivirus: ESET Smart Security 7.0, Updated and Enabled