diff --git a/res/Icons.qrc b/res/Icons.qrc
index 65bb4dc0..3a7614f7 100644
--- a/res/Icons.qrc
+++ b/res/Icons.qrc
@@ -7,6 +7,7 @@
 		<file>MainIcon3.png</file>
 		<file>MainIcon4.png</file>
 		<file>MainIcon5.png</file>
+		<file>MainIcon6.png</file>
 		<file>icons/add.png</file>
 		<file>icons/accept.png</file>
 		<file>icons/application_view_list.png</file>
diff --git a/res/MainIcon2.png b/res/MainIcon2.png
index f5c9bbff..cc6cab69 100644
Binary files a/res/MainIcon2.png and b/res/MainIcon2.png differ
diff --git a/res/MainIcon3.png b/res/MainIcon3.png
index cc6cab69..f5c9bbff 100644
Binary files a/res/MainIcon3.png and b/res/MainIcon3.png differ
diff --git a/res/MainIcon6.png b/res/MainIcon6.png
new file mode 100644
index 00000000..bfeab8b8
Binary files /dev/null and b/res/MainIcon6.png differ
diff --git a/src/Config.h b/src/Config.h
index a9a60ceb..dc03962b 100644
--- a/src/Config.h
+++ b/src/Config.h
@@ -30,7 +30,7 @@
 #define VER_LAMEXP_MINOR_LO					4
 #define VER_LAMEXP_TYPE						Alpha
 #define VER_LAMEXP_PATCH					12
-#define VER_LAMEXP_BUILD					842
+#define VER_LAMEXP_BUILD					844
 
 ///////////////////////////////////////////////////////////////////////////////
 // Tool versions (minimum expected versions!)
diff --git a/src/Global.cpp b/src/Global.cpp
index 45665fcd..76f71458 100644
--- a/src/Global.cpp
+++ b/src/Global.cpp
@@ -733,24 +733,49 @@ static bool lamexp_computus(const QDate &date)
 	}
 }
 
+/*
+ * Check for Thanksgiving
+ */
+static bool lamexp_thanksgiving(const QDate &date)
+{
+	int day = 0;
+
+	switch(QDate(date.year(), 11, 1).dayOfWeek())
+	{
+		case 1: day = 25; break; 
+		case 2: day = 24; break; 
+		case 3: day = 23; break; 
+		case 4: day = 22; break; 
+		case 5: day = 28; break; 
+		case 6: day = 27; break; 
+		case 7: day = 26; break;
+	}
+
+	return (date.month() == 11) && (date.day() == day);
+}
+
 /*
  * Initialize app icon
  */
 static QIcon lamexp_init_icon(const QDate &date, const QTime &time)
 {
-	if(((date.month() == 1) && (date.day() == 1)) || ((date.month() == 12) && (date.day() == 31) && (time.hour() > 20)))
+	if(lamexp_thanksgiving(date))
+	{
+		return QIcon(":/MainIcon6.png");
+	}
+	else if(((date.month() == 12) && (date.day() == 31) && (time.hour() >= 20)) || ((date.month() == 1) && (date.day() == 1)  && (time.hour() <= 19)))
 	{
 		return QIcon(":/MainIcon5.png");
 	}
-	else if(((date.month() == 10) && (date.day() == 31)) || ((date.month() == 11) && (date.day() == 1) && (time.hour() < 7)))
+	else if(((date.month() == 10) && (date.day() == 31) && (time.hour() >= 12)) || ((date.month() == 11) && (date.day() == 1)  && (time.hour() <= 11)))
 	{
 		return QIcon(":/MainIcon4.png");
 	}
-	else if(lamexp_computus(date))
+	else if((date.month() == 12) && (date.day() >= 24) && (date.day() <= 26))
 	{
 		return QIcon(":/MainIcon3.png");
 	}
-	else if((date.month() == 12) && (date.day() >= 24) && (date.day() <= 26))
+	else if(lamexp_computus(date))
 	{
 		return QIcon(":/MainIcon2.png");
 	}
diff --git a/src/Main.cpp b/src/Main.cpp
index c7c4fd86..36273666 100644
--- a/src/Main.cpp
+++ b/src/Main.cpp
@@ -88,6 +88,10 @@ static int lamexp_main(int argc, char* argv[])
 	//Check for expiration
 	if(lamexp_version_demo())
 	{
+		if(QDate::currentDate().addDays(1) < lamexp_version_date())
+		{
+			qFatal("System's date (%s) is before LameXP build date (%s). Huh?", QDate::currentDate().toString(Qt::ISODate).toLatin1().constData(), lamexp_version_date().toString(Qt::ISODate).toLatin1().constData());
+		}
 		qWarning(QString("Note: This demo (pre-release) version of LameXP will expire at %1.\n").arg(lamexp_version_expires().toString(Qt::ISODate)).toLatin1().constData());
 	}