Reset offset to a lower value if not enough games exist anymore.

Avoids things like "(15-8 of 8)".


git-svn-id: svn://katsu.triplehelix.org/dgamelaunch/trunk@275 db0b04b0-f4d1-0310-9a6d-de3e77497b0e

dgamelaunch.c

@@ -319,6 +319,14 @@ inprogressmenu ()
 
   while (1)
     {
+      if (len == 0)
+        offset = 0;
+      else
+        {
+	  while (offset >= len && offset >= 14)
+	    offset -= 14;
+	}
+
       clear ();
       drawbanner (1, 1);
       mvprintw (3, 1,