CF Card failure - a bit different

Hello!

First: Im from Norway, and my english are awful! Then: Why are you taking your card out of the camera, instead of using the cabel who followed the camera? I had a EOS 50D, using Kingston 600x cards, and using cabel to transfer picture over to my computer. After that I always formatt my cards in the camera, and I have had no problems with my cards. The only problems I have had was when I tried 600x cards from Trancend, who never manage to transfer picture directly from camera to the computer. Canon said the problem had to be the compability between the card and the camera. Why I ask if you tried using the cabel for transferring data, is that Im planning to buy one or two cards from SanDisc, but I didn`t like what I saw on this pages. Maybe I after all should stay with my cards from Kingston, and be happy with that?