Hi all. I have a problem. I had a 16gb memory card from new which started to cause battery drain when inserted. i.e if the card was in the slot, the n900 cpu usage was at maximum, when removed it returned to normal. It also wasn't accessible when connected to pc in usb mode. I tried to reformat the card on the n900 but it wouldn't, so tried to reformat on pc via a usb microSD card reader but had a window telling me it failed as the card was write protected. I didn't (and don't know how to) write protect it. So, i gave up and bought a new microSD card, it showed capacity of nearly 16gb so all was well. I copied some music to it but it failed half way through the copy and now the card is shown at 8mb capacity (total) and write protected! Does anyone know what's going on? or how to remove the write protection from it via the n900 or pc? please Thanks Dan