I was getting the Nokia Screen freeze at power on and followed the advice to re-flash my N810. I took the Diablo 2008 as the latest version of OS2008 using the Nokia software update wizard. This worked fine and overcame the freezing, but now I can't see either the internal or external memory cards when viewing with File Manager. When connecting to a PC using USB, the F and G drives show but when I try to open them I get the message "Please insert a drive into disk <x>". Also when I first connect the USB cable, the IT shows the message "Unable to connect via USB. No memory card inserted". If I remove the external SD card (8Gb) and connect it to the PC using the SD carrier, I can see all the files ok, so I presume it's not corrupted. I don't know Linux, so can anyone please tell me how I can get the IT to re-mount the two cards, or if this is caused by some other bug? Thanks.