diff --git a/src/lib/reader.c b/src/lib/reader.c
index 3c18e3116..1066e0bb7 100644
--- a/src/lib/reader.c
+++ b/src/lib/reader.c
@@ -89,10 +89,10 @@ int ncreader_move_left(ncreader* n){
     if(y == 0){
       return -1; // no move possible
     }
-    viewx = n->textarea->lenx - 1; // FIXME find end of particular row
+    viewx = n->ncp->lenx - 1; // FIXME find end of particular row
     --y;
-    textx = viewx;
-    n->xproject = 0;
+    textx = n->textarea->x - 1;
+    n->xproject = n->textarea->x - n->ncp->x;
   }else{
     // if we're on the first column of the viewarea, but not the first column
     // of the textarea, we must be able to scroll to the left. do so.
diff --git a/src/poc/reader.cpp b/src/poc/reader.cpp
index d9e93dbc7..fafdcb10e 100644
--- a/src/poc/reader.cpp
+++ b/src/poc/reader.cpp
@@ -7,11 +7,26 @@
 
 using namespace ncpp;
 
-auto main() -> int {
+auto usage(const char* argv0, int ret) -> void {
+  std::cerr << "usage: " << argv0 << " [ -hs ]" << std::endl;
+  exit(ret);
+}
+
+auto main(int argc, const char** argv) -> int {
   if(!setlocale(LC_ALL, "")){
     std::cout << "Error setting locale\n";
     return EXIT_FAILURE;
   }
+  bool horscroll = false;
+  if(argc == 2){
+    if(strcmp(argv[1], "-hs") == 0){
+      horscroll = true;
+    }else{
+      usage(argv[0], EXIT_FAILURE);
+    }
+  }else if(argc > 2){
+    usage(argv[0], EXIT_FAILURE);
+  }
   notcurses_options nopts{};
   nopts.flags = NCOPTION_INHIBIT_SETLOCALE;
   NotCurses nc(nopts);
@@ -22,6 +37,7 @@ auto main() -> int {
   opts.physrows = dimy / 8;
   opts.physcols = dimx / 2;
   opts.egc = "░";
+  opts.flags = horscroll ? NCREADER_OPTION_HORSCROLL : 0;
   // FIXME c++ is crashing
   //Reader nr(nc, 0, 0, &opts);
   auto nr = ncreader_create(**n, 2, 2, &opts);
@@ -38,8 +54,15 @@ auto main() -> int {
       break;
     }
     int y, x;
-    ncplane_cursor_yx(ncreader_plane(nr), &y, &x);
+    struct ncplane* ncp = ncreader_plane(nr);
+    ncplane_cursor_yx(ncp, &y, &x);
     nc.cursor_enable(y + 2, x + 2);
+    int ncpy, ncpx;
+    ncplane_cursor_yx(ncp, &ncpy, &ncpx);
+    int tgeomy, tgeomx, vgeomy, vgeomx;
+    (*n)->get_dim(&tgeomy, &tgeomx);
+    ncplane_dim_yx(ncp, &vgeomy, &vgeomx);
+    (*n)->printf(0, 0, "Cursor: %d/%d Viewgeom: %d/%d Textgeom: %d/%d", ncpy, ncpx, vgeomy, vgeomx, tgeomy, tgeomx);
     nc.render();
   }
   nc.render();