diff --git a/Xserver/hw/rdp/rdpup.c b/Xserver/hw/rdp/rdpup.c
index c0b27b8f..06e8b026 100644
--- a/Xserver/hw/rdp/rdpup.c
+++ b/Xserver/hw/rdp/rdpup.c
@@ -351,7 +351,8 @@ param4 %d\n", msg, param1, param2, param3, param4);*/
         break;
       case 200:
         rdpup_begin_update();
-        rdpup_send_area(param1, param2, param3, param4);
+        rdpup_send_area((param1 >> 16) & 0xffff, param1 & 0xffff,
+                        (param2 >> 16) & 0xffff, param2 & 0xffff);
         rdpup_end_update();
         break;
     }
diff --git a/xup/xup.c b/xup/xup.c
index 20716789..b0813d77 100644
--- a/xup/xup.c
+++ b/xup/xup.c
@@ -254,10 +254,14 @@ lib_mod_connect(struct mod* mod)
     s_push_layer(s, iso_hdr, 4);
     out_uint16_le(s, 103);
     out_uint32_le(s, 200);
+    /* x and y */
+    i = 0;
+    out_uint32_le(s, i);
+    /* width and height */
+    i = ((mod->width & 0xffff) << 16) | mod->height;
+    out_uint32_le(s, i);
     out_uint32_le(s, 0);
     out_uint32_le(s, 0);
-    out_uint32_le(s, mod->width);
-    out_uint32_le(s, mod->height);
     s_mark_end(s);
     len = s->end - s->data;
     s_pop_layer(s, iso_hdr);