Hello Marvin, Sadly, I don't have any advice for you. But I did experience this problem some months ago. No one was able to duplicate it. It seems to have disappeared on its own, though; maybe the same will happen for you. Angie --Original Message Text--- From: Kotler/McCarthy Marv/Josie Date: Wed, 18 Jan 2006 12:00:04 -0800 Hello folks. First I have a book port that is approximately four months old. I am using a 1 gb flash card and my operating system is windows me. After I send a few files to the unit or record a memo, I am taken back to the beginning of the present file that I am reading. All my bookmarks also are cleared. Then I have to run scan disk and the book port works fine. The thing is this happens quite often and as a consequence, I have to run scan disk frequently. I was wondering if anyone out there had any advice on how I night cut down on the amount of errors that come up. Any advice would be appreciated. Marvin Kotler