diff --git a/programs/KOSfuncs.inc b/programs/KOSfuncs.inc
index 1bc8e1580a..e4fc5f9065 100644
--- a/programs/KOSfuncs.inc
+++ b/programs/KOSfuncs.inc
@@ -17,14 +17,14 @@ SF_REDRAW=12
   SSF_END_DRAW=2
 SF_DRAW_RECT=13         ; draw rectangle to the window
 SF_GET_SCREEN_SIZE=14   ; get screen resolution
-SF_BACKGROUND_SET=15
-  SSF_SIZE_BG=1
-  SSF_PIXEL_BG=2
-  SSF_REDRAW_BG=3
-  SSF_MODE_BG=4
-  SSF_IMAGE_BG=5
+SF_BACKGROUND_SET=15    ; work with desktop background graphics
+  SSF_SIZE_BG=1         ; set a size of the background image
+  SSF_PIXEL_BG=2        ; put pixel on the background image
+  SSF_REDRAW_BG=3       ; redraw background
+  SSF_MODE_BG=4         ; set drawing mode for the background
+  SSF_IMAGE_BG=5        ; put block of pixels on the background image
   SSF_MAP_BG=6          ; map background image to the address space of the process
-  SSF_UNMAP_BG=7
+  SSF_UNMAP_BG=7        ; close mapped background data
   SSF_LAST_DRAW=8       ; get coordinates of the last draw to the background
   SSF_REDRAW_RECT=9     ; redraws a rectangular part of the background
 SF_RD_TO_FLOPPY=16      ; save ramdisk on the floppy
diff --git a/programs/cmm/eolite/Eolite.c b/programs/cmm/eolite/Eolite.c
index 8d1e6cae66..1bf1e43e77 100644
--- a/programs/cmm/eolite/Eolite.c
+++ b/programs/cmm/eolite/Eolite.c
@@ -241,7 +241,9 @@ void main()
 					//select file
 					if (mouse.key&MOUSE_LEFT) && (mouse.up)
 					{
-						if (files.ProcessMouse(mouse.x, mouse.y)) List_ReDraw(); else Open(0);
+						if (files.ProcessMouse(mouse.x, mouse.y)) List_ReDraw(); else {
+							if (mouse.y - files.y / files.item_h + files.first == files.cur_y) Open(0);
+						}
 					}
 					//file menu
 					if (mouse.key&MOUSE_RIGHT)