Alt-< and Alt-> (and possibly some other keys) not working in elinks

I am running elinks (0.12pre5) in an xterm window in Openbox on a Debian netinstall (7.8) with fairly minimal changes/additional software installation. I have changed a few elinks options, but none that seem like they should be relevant to this issue. In particular, I have not changed any of the keybindings. I have installed the terminus-fonts package, on the off chance that that's relevant. According to man elinkskeys, Alt+ and Alt+> should jump to the first or last line of the current buffer when editing a text box, or move a tab to the left or right otherwise. For me, they do neither of these things. When editing a text box, Alt+ (i.e. Alt+Shift+,) generates the character ¼ (the composed version of 1/4) and Alt+> (i.e. Alt+Shift+.) generates the character ¾ (the composed version of 3/4). I also tried omitting the Shift; Alt+, gives ¬ and Alt+. gives ®. When not editing a text box, none of these keystrokes seems to do anything. On a possibly related note, the man page indicates that, when editing a text box, Ctrl+A and Home "go to the start of the page/line" and Ctrl+E and End "go to the end of the page/line." In fact, all four keystrokes go to the start/end of a line as expected, but do not move the cursor between lines, even when struck repeatedly or held down. Thus, I don't seem to have any way of moving vertically more than one line at a time within a text box. Tab and Shift+Tab also appear to do nothing when editing (I don't expect Alt+Tab to do anything, since that's presumably being preempted by Openbox — which I want it to be!). I am not sure whether this is a consequence of my turning taborder off, which I did because it interacts badly with numbered links on certain pages.