diff --git a/uppsrc/CodeEditor/CLogic.cpp b/uppsrc/CodeEditor/CLogic.cpp
index dc46c6687..f6bbc400c 100644
--- a/uppsrc/CodeEditor/CLogic.cpp
+++ b/uppsrc/CodeEditor/CLogic.cpp
@@ -197,6 +197,12 @@ void CSyntax::CheckSyntaxRefresh(CodeEditor& e, int pos, const WString& text)
 	String s = TrimLeft(e.GetUtf8Line(e.GetLine(pos)));
 	if(s.StartsWith("#if") || s.StartsWith("#e"))
 		e.Refresh();
+
+	WString h = e.GetWLine(e.GetLinePos(pos)); // block highlighting changes if start of line is changed
+	for(int i = 0; i < pos; i++)
+		if(findarg(h[i], ' ', '\t') < 0)
+			return;
+	e.Refresh();
 }
 
 END_UPP_NAMESPACE
diff --git a/uppsrc/CodeEditor/CodeEditor.cpp b/uppsrc/CodeEditor/CodeEditor.cpp
index da17edf8a..3740cf489 100644
--- a/uppsrc/CodeEditor/CodeEditor.cpp
+++ b/uppsrc/CodeEditor/CodeEditor.cpp
@@ -75,8 +75,8 @@ inline bool IsComment(int a, int b) {
 	return a == '/' && b == '*' || a == '*' && b == '/' || a == '/' && b == '/';
 }
 
-void CodeEditor::PreInsert(int pos, const WString& text) {
-	if(IsFullRefresh()) return;
+void CodeEditor::PreInsert(int pos, const WString& text)
+{
 }
 
 inline bool RBR(int c) {
diff --git a/uppsrc/ide/idewin.cpp b/uppsrc/ide/idewin.cpp
index 877754116..12e60a1d6 100644
--- a/uppsrc/ide/idewin.cpp
+++ b/uppsrc/ide/idewin.cpp
@@ -712,7 +712,7 @@ void AppMain___()
 #endif
 
 #ifdef _DEBUG
-//	Ctrl::ShowRepaint(50);
+	Ctrl::ShowRepaint(20); _DBG_
 #endif
 
 #ifdef PLATFORM_WIN32