Good morning, I am new to this forum so please forgive and redirect me if this is not the proper place to post my question. I recently purchased a Lexar 1GB flashcard with a new canon digital rebel XT. On two occasions--one month ago and last nite I got the following error: "can't copy the parameter is incorrect." Tried to open the photos I took on the card and got the following: "could not open because a jpeg marker segment length is too short (the file may be truncated or incomplete)" I had set the parameter on the largest (but not RAW) Strange, since I've been using the camera and card 30 days -- got this problem only the first day and now today. Please let me know if you possibly might be able to help me. I would be really grateful.