Ok!! i have restored all the partitions from your other post with the ubuntu instructions (downloaded ubuntu 12.10 as that version had the updated Disks application with the 2 cogs). Now the reader seems to be working ok. I tried restarting it many times, puting it to sleep and all and everything seems to be working flawlessly. If i have a problem i will let everybody now, but for now i will consider this as solved.
i cant believe how easy it was, thanks entodays!