--- gnus-art.el	2008-03-13 15:51:23.000000000 +0100
+++ gnus-art.el-patched	2008-03-13 15:52:31.000000000 +0100
@@ -6100,6 +6100,9 @@
 	(gnus-narrow-to-page 1)		;Go to next page.
 	nil)
     ;; More in this page.
+    (when (and (boundp 'scroll-margin)
+	       (not (zerop scroll-margin)))
+      (move-to-window-line nil))
     (gnus-article-next-page-1 lines)
     nil))