diff --git a/src/game.cc b/src/game.cc
index b33faff..ac00be8 100644
--- a/src/game.cc
+++ b/src/game.cc
@@ -1141,13 +1141,11 @@ static void showHelp()
     if (win != -1) {
         unsigned char* windowBuffer = windowGetBuffer(win);
         if (windowBuffer != NULL) {
+            FrmImage backgroundFrmImage;
             int backgroundFid = buildFid(OBJ_TYPE_INTERFACE, 297, 0, 0, 0);
-            CacheEntry* backgroundHandle;
-            unsigned char* backgroundData = artLockFrameData(backgroundFid, 0, 0, &backgroundHandle);
-            if (backgroundData != NULL) {
+            if (backgroundFrmImage.lock(backgroundFid)) {
                 paletteSetEntries(gPaletteBlack);
-                blitBufferToBuffer(backgroundData, HELP_SCREEN_WIDTH, HELP_SCREEN_HEIGHT, HELP_SCREEN_WIDTH, windowBuffer, HELP_SCREEN_WIDTH);
-                artUnlock(backgroundHandle);
+                blitBufferToBuffer(backgroundFrmImage.getData(), HELP_SCREEN_WIDTH, HELP_SCREEN_HEIGHT, HELP_SCREEN_WIDTH, windowBuffer, HELP_SCREEN_WIDTH);
                 windowUnhide(win);
                 colorPaletteLoad("art\\intrface\\helpscrn.pal");
                 paletteSetEntries(_cmap);