diff -Nur geeqie-1.0-orig/src/filedata.c geeqie-1.0/src/filedata.c
--- geeqie-1.0-orig/src/filedata.c	2010-02-17 22:21:19.000000000 +0100
+++ geeqie-1.0/src/filedata.c	2011-03-05 11:07:17.329682947 +0100
@@ -489,6 +489,7 @@
 			if (stat(sl, &st) == 0)
 				{
 				list = g_list_prepend(list, file_data_new_local(sl, &st, FALSE, FALSE));
+                break;  /* don't take multiple combinations because of case-insensitive filesystems */
 				}
 			}
 		}
@@ -535,11 +536,14 @@
 
 		if (!basename_hash)
 			{
+				if (g_ascii_strcasecmp(ext, fd->extension) != 0) 
+					{
 			GList *new_list;
 			g_string_truncate(fname, base_len);
 			g_string_append(fname, ext);
 			new_list = check_case_insensitive_ext(fname->str);
 			group_list = g_list_concat(group_list, new_list);
+                    }
 			}
 		else
 			{