diff --git a/xwords4/common/memstream.c b/xwords4/common/memstream.c
index 7977141ea..081632de2 100644
--- a/xwords4/common/memstream.c
+++ b/xwords4/common/memstream.c
@@ -419,7 +419,7 @@ mem_stream_getHash( const XWStreamCtxt* p_sctx, XWStreamPos pos,
     }
     hash = finishHash( hash );
 
-    XP_LOGF( "%s(nBytes=%d, nBits=%d) => %X", __func__, len, bits, hash );
+    /* XP_LOGF( "%s(nBytes=%d, nBits=%d) => %X", __func__, len, bits, hash ); */
     return hash;
 } /* mem_stream_getHash */
 
diff --git a/xwords4/linux/cursesdraw.c b/xwords4/linux/cursesdraw.c
index 79daf4af3..683ebb5b9 100644
--- a/xwords4/linux/cursesdraw.c
+++ b/xwords4/linux/cursesdraw.c
@@ -364,7 +364,6 @@ curses_draw_drawTimer( DrawCtx* p_dctx, const XP_Rect* rInner,
     formatTimerText( buf, VSIZE(buf), secondsLeft );
     mvwprintw( dctx->boardWin, rInner->top, rInner->left, buf );
     wrefresh( dctx->boardWin );
-    XP_LOGF( "%s(): drew %s at %d,%d", __func__, buf, rInner->left, rInner->top );
 }
 
 static void
diff --git a/xwords4/linux/lindutil.c b/xwords4/linux/lindutil.c
index 8075d098e..4b7dbe5bb 100644
--- a/xwords4/linux/lindutil.c
+++ b/xwords4/linux/lindutil.c
@@ -140,6 +140,8 @@ linux_dutil_getUserString( XW_DUtilCtxt* XP_UNUSED(uc), XP_U16 code )
         return (XP_UCHAR*)"- %d [unused tiles]";
     case STR_COMMIT_CONFIRM:
         return (XP_UCHAR*)"Are you sure you want to commit the current move?\n";
+    case STR_SUBMIT_CONFIRM:
+        return (XP_UCHAR*)"Submit the current move?\n";
     case STRD_TURN_SCORE:
         return (XP_UCHAR*)"Score for turn: %d\n";
     case STR_BONUS_ALL:
@@ -205,7 +207,8 @@ linux_dutil_getUserString( XW_DUtilCtxt* XP_UNUSED(uc), XP_U16 code )
         return "%d of %d players have reported their moves.";
 
     default:
-        return (XP_UCHAR*)"unknown code to linux_util_getUserString";
+        XP_LOGF( "%s(code=%d)", __func__, code );
+        return (XP_UCHAR*)"unknown code";
     }
 } /* linux_dutil_getUserString */
 
diff --git a/xwords4/linux/linuxmain.c b/xwords4/linux/linuxmain.c
index 6353d4d1f..eb9b245a0 100644
--- a/xwords4/linux/linuxmain.c
+++ b/xwords4/linux/linuxmain.c
@@ -1118,9 +1118,9 @@ linux_getDevIDRelay( LaunchParams* params )
     gchar buf[32];
     if ( db_fetch_safe( params->pDb, KEY_RDEVID, buf, sizeof(buf) ) ) {
         sscanf( buf, "%X", &result );
-        XP_LOGF( "%s(): %s => %x", __func__, buf, result );
+        /* XP_LOGF( "%s(): %s => %x", __func__, buf, result ); */
     }
-    LOG_RETURNF( "%d", result );
+    /* LOG_RETURNF( "%d", result ); */
     return result;
 }