'n' and 'p' keys ("next", "previous") work only in preview mode. When viewing a message in separate window, they do not work.
Changes related to this bug have been committed. Please check latest CVS and update the bug accordingly. You can also get the patch from: http://www.colino.net/claws-mail/ 2011-10-31 [pawel] 3.7.10cvs66 * src/messageview.c * src/mimeview.c * src/mimeview.h * src/summaryview.c Fix bug #2526 'When reading message in separate window, n and p keys do not work' - fix key event handling in messageview - remove bindings for 'n' and 'p' keys in mimeview (next-part and prev-part actions) - instead add 'z' key for prev-part, we have 'a' key for next-part already