Lynda: This is one of the most stable pieces of software that we sell. Therefore, it's not likely that it's the software that's causing the problem. You can certainly check to be sure you are running the latest software version, which should be 2.3.1. You can check that by going into the Book Port Transfer program, and either do alt a for the about box, or tab down to the "About" button and read that box. You don't have to have the Book Port connected for that part, although if the Book Port is connected, it'll give you both the Software and the Firmware versions. The Firmware Version should be 2.3. As far as knowing why it's doing this, I'd have to know if you've ever had to reformat to make it work, or if it starts working without reformatting the card. Usually, when the Book Port stops working, it is card related. If it's not card related, then it could be a bad cable, or interference from another USB device or something on the computer that's causing it. In doing support for this product in the 3 years it's been out, I can tell you it's almost never software related. In short, if you were to reinstall the software, it's likely the problem would persist, because it's being caused by something else. And, as I'm writing this, it also occurs to me that if your cable is one of the longer cables, then this problem could also occur. The longer the cable, the longer the path. When we first came out with the Book Port, the cables were a lot shorter. Somewhere in the course of time, the manufacturer started using cables that were longer in length and we started seeing the intermittent connections. So, if you can rule out all of the other things I mentioned, it could be as simple as the length of the cable. If you have a PacMate or something else that uses the same type of cable, you might try using that one and see if it still happens. If not, then you might want to go out and see if you can purchase a shorter cable. I'm sorry I can't answer the question any better than that, but that's the best guess I can make, based on the information I have and the question. Pamela Rader, TECHNICAL SUPPORT American Printing House For The Blind 1839 Frankfort Ave. Louisville, KY 40206 PHONE: 1-800-223-1839, Ext. 307 >>> lindamay.davis@xxxxxxxxxxx 04/18/07 08:41PM >>> Why is it that sometimes our computer doesn't recognize the book port when connected, and sometimes it will. Should we check for updates? Should I uninstall and reinstall the software?