Hello, In 20912 I purchased a Raspberry Pi B and a 4GB SD card from RS. It worked fine until I tried to upgrade my Raspian version. Basically it crashed the Raspberry pi, and wouldn't reboot. So I installed a new version of NOOBS, and the install worked fine, until the final reboot. After booting is almost complete it comes up with lots of mmc0 errors (possibly "Timeout Waiting for Hardware Interrupt on mmc0" although I will need to double check). A Google search suggested that this is because the SD card is incompatible. Which is disappointing, as I purchased it with the Raspberry Pi so I wouldn't have compatibility issues. Anyway, on the assumption that something is wrong with the SD card, are there are known good SD cards I can buy locally? The list at http://elinux.org/RPi_SD_cards is not helpful, and seems to be full of contradictions. I have read stories of people spending lots of money on SD cards and finding none of them work, so am a bit nervous about doing this myself. Thanks -- Brian May <brian@microcomaustralia.com.au>