diff -Naur gkrellm-2.3.0/src/gui.c gkrellm-2.3.0-mlz/src/gui.c
--- gkrellm-2.3.1/src/gui.c	2007-07-20 18:47:32.000000000 +0200
+++ gkrellm-2.3.1-mlz/src/gui.c	2008-01-14 11:28:22.000000000 +0100
@@ -2441,8 +2441,8 @@
 	{
 {"/-",				   NULL,	NULL,					0, "<Separator>"},
 {N_("/Configuration"), "F1",	create_config_window, 	0, "<Item>"},
-{N_("/Theme/Prev"), "Page_Up",	cb_load_theme,	THEME_ALT_PREV,	"<Item>"},
-{N_("/Theme/Next"), "Page_Down", cb_load_theme,	THEME_ALT_NEXT,	"<Item>"},
+{N_("/Theme/Prev"), "<shift>Page_Up",	cb_load_theme,	THEME_ALT_PREV,	"<Item>"},
+{N_("/Theme/Next"), "<shift>Page_Down", cb_load_theme,	THEME_ALT_NEXT,	"<Item>"},
 {"/-",				   NULL,	NULL,					0, "<Separator>"},
 {N_("/Quit"),		   NULL,	gtk_main_quit,			0, "<Item>"},
 {"/-",				   NULL,	NULL,					0, "<Separator>"},