diff --git a/filesearcher.lua b/filesearcher.lua
index e0f41d8de..814865d51 100644
--- a/filesearcher.lua
+++ b/filesearcher.lua
@@ -265,7 +265,7 @@ function FileSearcher:choose(ypos, height, keywords)
 				openFile(file_full_path)
 
 				pagedirty = true
-			elseif ev.code == KEY_BACK then
+			elseif ev.code == KEY_BACK or ev.code == KEY_HOME then
 				return nil
 			end
 		end
diff --git a/launchpad/kpdf.sh b/launchpad/kpdf.sh
index d493b9739..6d1eba1a4 100755
--- a/launchpad/kpdf.sh
+++ b/launchpad/kpdf.sh
@@ -1,4 +1,6 @@
 #!/bin/sh
+export LC_ALL="en_US.UTF-8"
+
 echo unlock > /proc/keypad
 echo unlock > /proc/fiveway
 cd /mnt/us/kindlepdfviewer/
diff --git a/mupdf b/mupdf
index ea671d125..e7bb1c493 160000
--- a/mupdf
+++ b/mupdf
@@ -1 +1 @@
-Subproject commit ea671d1254dad3b9ef5a8fbdd9729c3ada2a49b2
+Subproject commit e7bb1c4937593c95065dbbbdd7eb15a73996c470
diff --git a/unireader.lua b/unireader.lua
index e1296ad20..c14f3e134 100644
--- a/unireader.lua
+++ b/unireader.lua
@@ -697,7 +697,7 @@ function UniReader:inputloop()
 					keep_running = false
 				end
 				break
-			elseif ev.code == KEY_Z and not Keys.shiftmode then
+			elseif ev.code == KEY_Z and not (Keys.shiftmode or Keys.altmode) then
 				local bbox = {}
 				bbox["x0"] = - self.offset_x / self.globalzoom
 				bbox["y0"] = - self.offset_y / self.globalzoom
@@ -715,7 +715,7 @@ function UniReader:inputloop()
 				print("# bbox remove "..self.pageno .. dump(self.bbox));
 			elseif ev.code == KEY_Z and Keys.altmode then
 				self.bbox.enabled = not self.bbox.enabled;
-				print("# bbox override "..self.bbox.enabled);
+				print("# bbox override: ", self.bbox.enabled);
 			end
 
 			-- switch to ZOOM_BY_VALUE to enable panning on fiveway move