Hello:
Yes, the cf card is well, but not the system directory on it. I made a copy of it into the Applications one. It was very extrange because the partition in which System was has 213 mb I believe to remember, but it has 0kb free. I don't know if for some reason the partition was full (I don't believe so), or it was as it was left for the problem with "system is not validated".
I believe I will format the partition and will install what it had into again...
But the floppy drive won't arrive at least till monday
