dll/cpl/desk/screensaver.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dll/cpl/desk/screensaver.c b/dll/cpl/desk/screensaver.c
index 02c05c9b650..4aac8d971af 100644
--- a/dll/cpl/desk/screensaver.c
+++ b/dll/cpl/desk/screensaver.c
@@ -136,7 +136,7 @@ SetScreenSaverPreviewBox(HWND hwndDlg, PDATA pData)
                            NULL,
                            NULL,
                            FALSE,
-                           0,
+                           IDLE_PRIORITY_CLASS,
                            NULL,
                            NULL,
                            &si,