Reply to message (inline) (Mail reply above quoted text) the first key press enters a carriage return instead of the actual key pressed.
Walt, could you please read the Bug Writing Guidelines at <http://www.mozilla.org/quality/bug-writing-guidelines.html> to see the kinds of information we need in a bug report. Please report back with more information (like BuildID and steps to reproduce) after reading those guidelines and consider using the guided form to report future bugs. The guided entry form can be found at <http://bugzilla.mozilla.org/enter_bug.cgi?format=guided> Thanks for your help in testing Mozilla.
Walt, do you mean that the first char typed in reply causes caret to jump one line down? In that case this looks like a dupe of bug 173818 - fixed in late october.
*** This bug has been marked as a duplicate of 173818 ***
verified as a duplicate