Hi All, I've noticed that with my new 4 GB compact flash card, navigation between files on the Book Port is often sluggish. Navigation within a file works just fine, but switching between files takes 1 or two seconds. Also, although I have a USB 2.0 CF card reader, it is only copying files to the card with speeds equivalent to USB 1.1. Admittedly, this is an older card reader from a few years back. Anyone have any ideas what the problem could be? Grant