SD Card reader not recignised/working

[velani]

Hello All

On my T61 with Windows 7 x64, I never had a problem with built in SD card reader until just a few days back. Not sure what happened or what patch was applied, but now my SD card reader does not read ANY card and it does not show up as a drive letter.

I have rolled back a couple of weeks restore point, Googled and applied Richoh drivers for Win 7 etc., to no avail. Help please.......