I've known about the bug with 40x4 displays and autoscroll now for 3 weeks and it finally occurs to me that there is surely an UGLY rather stupid work around for it. I haven't tested it actually but I'm sure it would work. it would involve calling autoscroll twice in succession. I suppose it might be necessary to reposition the cursor between the 2 calls. Even if for some reason the hd44780 controlling the 2 lines that scrolled after the first command received the second one, it would just keep scrolling. It could even be built into the library as a special case only with 40x4 displays and I could pretend I'd fixed the bug. But it would be ugly and stupid. :-/