Anthony: Although there is no "Undo" feature, you could use some of the other Navigation commands, such as moving back by chapter, page or paragraph, to try and find your place. If you have an idea of how much of the book you read, you could try the Power Move command and go back from the end. The Power Move commands are d plus e to move back, and e plus f to move forward. From the User's Manual: Book Port's power move commands provide a quick means of moving through large sections of a file. Here is how it works: When you press one of the power search commands, Book Port moves half way from the current position to the other boundary of the power search. If this is the first time you use this command, that boundary will be the beginning or end of the file. When you use the command, Book Port moves and responds with the new percentage of the file position. If you use the command again without pressing any other keys, the position in the file where you were when you used the command gets treated as the new boundary in that direction. So, if you were at the beginning of the file and you pressed the Next Power command, Book Port moves your reading position from the beginning of the file to half way to the other boundary of the file which, in this case, is the end of the file. This puts you in the middle of the file and Book Port responds, "50%." Now, if you press the Back Power command, the unit moves you from the 50% point to half way to the other boundary which is, in this case, the beginning of the file, and Book Port reports, "25%." If you then used the Next Power command again, Book Port would move you half way between the 25% point and the 50% point. This command works in both idle and reading modes. If you were in reading mode when you use the command, Book Port moves to the new position and continues reading from that point. Hope that helps. Pamela Rader, TECHNICAL SUPPORT American Printing House For The Blind 1839 Frankfort Ave. Louisville, KY 40206 PHONE: 1-800-223-1839, Ext. 307 >>> anthony.gough@xxxxxxxxxxxxxx 09/08/06 07:17AM >>> I was listening to one of the books that came with book port and I held down a key for too long and ended up at the end of the book. What would be useful is if there was a key combination that undid the last move command and returned you to where you were. I have looked in the manual and can't find an undo command. Anthony