Build 2001120108 - mozilla-win32-installer-sea.exe The shortcuts in the mail composition window the keyboard shortcuts for Send Now or Send Later (Ctrl-Return, Ctrl-Shift-Return) don't work. I installed this build on my Windows 98 computer and got the same result.
Yes, it's well known issue. The work on it in the progress. bug 20336, bug 102643, bug 50255. *** This bug has been marked as a duplicate of 20336 ***
reopening to dupe against proper bug...
This is a known problem on Windows. *** This bug has been marked as a duplicate of 50255 ***