diff --git a/kchart/kchart_part.cpp b/kchart/kchart_part.cpp
index fb6a64143..1956904bd 100644
--- a/kchart/kchart_part.cpp
+++ b/kchart/kchart_part.cpp
@@ -1621,8 +1621,6 @@ bool KChartPart::loadData( const TQDomDocument& doc,
     m_currentData.setUsedRows( rows );
     kdDebug(35001) << "Expanded!" << endl;
     TQDomNode n = data.firstChild();
-    //TQArray<int> tmpExp(rows*cols);
-    //TQArray<bool> tmpMissing(rows*cols);
     for (int i=0; i!=rows; i++) {
         for (int j=0; j!=cols; j++) {
             if (n.isNull()) {
@@ -1717,8 +1715,8 @@ bool KChartPart::loadOldXML( const TQDomDocument& doc )
     m_currentData.expand(rows, cols);
     kdDebug(35001) << "Expanded!" << endl;
     TQDomNode n = data.firstChild();
-    TQArray<int> tmpExp(rows*cols);
-    TQArray<bool> tmpMissing(rows*cols);
+    TQMemArray<int> tmpExp(rows*cols);
+    TQMemArray<bool> tmpMissing(rows*cols);
 
     for (int i=0; i!=rows; i++) {
         for (int j=0; j!=cols; j++) {
diff --git a/kchart/kdchart/KDChartBWPainter.cpp b/kchart/kdchart/KDChartBWPainter.cpp
index 19d4fa6bf..a8d95d3fa 100644
--- a/kchart/kdchart/KDChartBWPainter.cpp
+++ b/kchart/kdchart/KDChartBWPainter.cpp
@@ -31,12 +31,7 @@
 #include "KDChartTextPiece.h"
 
 #include <tqpainter.h>
-#if COMPAT_TQT_VERSION >= 0x030000
 #include <tqmemarray.h>
-#else
-#include <tqarray.h>
-#define TQMemArray TQArray
-#endif
 
 #include <stdlib.h>
 
diff --git a/kchart/kdchart/KDChartGlobal.h b/kchart/kdchart/KDChartGlobal.h
index 2dc4fdb3d..91772b015 100644
--- a/kchart/kdchart/KDChartGlobal.h
+++ b/kchart/kdchart/KDChartGlobal.h
@@ -78,40 +78,7 @@
 #endif
 
 
-#if COMPAT_TQT_VERSION < 0x030000
-
-#if !defined(Q_ASSERT)
-#if defined(TQT_CHECK_STATE)
-#if defined(TQT_FATAL_ASSERT)
-#define Q_ASSERT(x)  ((x) ? (void)0 : tqFatal("ASSERT: \"%s\" in %s (%d)",#x,__FILE__,__LINE__))
-#else
-#define Q_ASSERT(x)  ((x) ? (void)0 : tqWarning("ASSERT: \"%s\" in %s (%d)",#x,__FILE__,__LINE__))
-#endif
-#else
-#define Q_ASSERT(x)
-#endif
-#endif
-
-#if !defined(TQT_NO_COMPAT)
-// source compatibility with TQt 2.x
-#ifndef Q_OS_TEMP
-#  if !defined(ASSERT)
-#    define ASSERT(x) Q_ASSERT(x)
-#  endif
-#endif // Q_OS_TEMP
-#endif // TQT_NO_COMPAT
-
-#define TQMemArray TQArray
-
-#include <tqarray.h>
-
-#else
-
 #include <tqmemarray.h>
-
-#endif
-// end of #if COMPAT_TQT_VERSION < 0x030000
-
 #include <tqptrlist.h>
 #include <tqptrvector.h>
 
diff --git a/kchart/kdchart/KDChartLinesPainter.cpp b/kchart/kdchart/KDChartLinesPainter.cpp
index 24a9b906a..705abb986 100644
--- a/kchart/kdchart/KDChartLinesPainter.cpp
+++ b/kchart/kdchart/KDChartLinesPainter.cpp
@@ -31,12 +31,7 @@
 #include <KDChartPropertySet.h>
 
 #include <tqpainter.h>
-
-#if COMPAT_TQT_VERSION >= 0x030000
 #include <tqvaluevector.h>
-#else
-#include <tqarray.h>
-#endif
 
 #include <stdlib.h>
 
@@ -286,11 +281,7 @@ void KDChartLinesPainter::specificPaintData( TQPainter* painter,
          ( dataset >= static_cast < int > ( datasetStart ) && dataset >= 0 );
          --dataset )
         ++arrayNumDatasets;
-#if COMPAT_TQT_VERSION >= 0x030000
     TQValueVector<MyPoint> allPoints(
-#else
-    TQArray<MyPoint> allPoints(
-#endif
                               arrayNumDatasets * arrayNumValues );
                                     
     KDChartPropertySet curPropSet;
diff --git a/kchart/kdchart/KDChartParams.h b/kchart/kdchart/KDChartParams.h
index 0cbde9c9c..089c725be 100644
--- a/kchart/kdchart/KDChartParams.h
+++ b/kchart/kdchart/KDChartParams.h
@@ -40,6 +40,7 @@
 #include <tqtextstream.h>
 #include <tqsimplerichtext.h>
 #include <tqdom.h>
+#include <tqvaluevector.h>
 #include <limits.h>
 
 #include <math.h>
@@ -54,11 +55,6 @@
 #include "KDChartAxisParams.h"
 #include "KDChartPropertySet.h"
 
-#if COMPAT_TQT_VERSION >= 0x030000
-#include <tqvaluevector.h>
-#else
-#include <tqarray.h>
-#endif
 
 /** \file KDChartParams.h
     \brief Header for all common chart parameters.
@@ -2097,11 +2093,7 @@ public slots:
                        uint& chart ) const;
 
 public:
-#if COMPAT_TQT_VERSION >= 0x030000
     typedef TQValueVector<uint> AxesArray;
-#else
-    typedef TQArray<uint> AxesArray;
-#endif
 
 public slots:
     bool chartAxes( uint chart, uint& cnt, AxesArray& axes ) const;
diff --git a/kchart/kdchart/KDChartSeriesCollection.cpp b/kchart/kdchart/KDChartSeriesCollection.cpp
index 812db8fdb..217f5102b 100644
--- a/kchart/kdchart/KDChartSeriesCollection.cpp
+++ b/kchart/kdchart/KDChartSeriesCollection.cpp
@@ -132,11 +132,7 @@ double KDChartSeriesCollection::maxValue( int coordinate ) const
     bool first_max = true;
 
     // find the first max
-#if COMPAT_TQT_VERSION >= 0x030000
     TQValueVector<KDChartBaseSeries *>::const_iterator i;
-#else
-    TQArray<KDChartBaseSeries *>::ConstIterator i;
-#endif
     for ( i = (*this).begin(); i != (*this).end(); i ++ )
     {
         double temp = (*i)->maxValue(coordinate, ok);
@@ -163,11 +159,7 @@ double KDChartSeriesCollection::minValue( int coordinate ) const
     double result = 0;      // if no valid min/max, then this is the default
 
     // find the first min
-#if COMPAT_TQT_VERSION >= 0x030000
     TQValueVector<KDChartBaseSeries *>::const_iterator i;
-#else
-    TQArray<KDChartBaseSeries *>::ConstIterator i;
-#endif
     for ( i = (*this).begin(); !ok && i != (*this).end(); i ++ )
         result = (*i)->minValue(coordinate, ok);
 
@@ -186,11 +178,7 @@ double KDChartSeriesCollection::minValue( int coordinate ) const
 unsigned int KDChartSeriesCollection::indexOf( KDChartBaseSeries *series )
 {
     unsigned int index = 0;
-#if COMPAT_TQT_VERSION >= 0x030000
     TQValueVector<KDChartBaseSeries *>::const_iterator i;
-#else
-    TQArray<KDChartBaseSeries *>::ConstIterator i;
-#endif
     for ( i = (*this).begin(); i != (*this).end(); i ++, index ++ )
         if ( *i == series )
             break;
diff --git a/kchart/kdchart/KDChartSeriesCollection.h b/kchart/kdchart/KDChartSeriesCollection.h
index bacda7260..8ce3044cc 100644
--- a/kchart/kdchart/KDChartSeriesCollection.h
+++ b/kchart/kdchart/KDChartSeriesCollection.h
@@ -34,22 +34,14 @@
 
 #include "KDChartTableBase.h"
 #include "KDChartBaseSeries.h"
-#if COMPAT_TQT_VERSION >= 0x030000
 #include <tqvaluevector.h>
-#else
-#include <tqarray.h>
-#endif
 class KDChartParams;
 #include "KDChartAxisParams.h"
 
 // takes ownership of any series passed to it, and will delete
 // them when it is deleted.
 class KDCHART_EXPORT KDChartSeriesCollection : public KDChartTableDataBase,
-#if COMPAT_TQT_VERSION >= 0x030000
     public TQValueVector<KDChartBaseSeries *>
-#else
-    public TQArray<KDChartBaseSeries *>
-#endif
 {
     // Standard KDChartTableDataBase interface
     public:
diff --git a/kchart/kdchart/KDChartVectorSeries.h b/kchart/kdchart/KDChartVectorSeries.h
index 6bb335109..574708994 100644
--- a/kchart/kdchart/KDChartVectorSeries.h
+++ b/kchart/kdchart/KDChartVectorSeries.h
@@ -38,21 +38,13 @@
 // - Implement a TQValueVector interface
 
 #include "KDChartBaseSeries.h"
-#if COMPAT_TQT_VERSION >= 0x030000
 #include <tqvaluevector.h>
-#else
-#include <tqarray.h>
-#endif
 class KDChartSeriesCollection;
 
 
 
 class KDCHART_EXPORT KDChartVectorSeries : public KDChartBaseSeries, 
-#if COMPAT_TQT_VERSION >= 0x030000
     public TQValueVector<KDChartData>
-#else
-    public TQArray<KDChartData>
-#endif
 {
     public:
         virtual ~KDChartVectorSeries();
diff --git a/lib/store/KoStore.cpp b/lib/store/KoStore.cpp
index 9363f8073..221c6b5cc 100644
--- a/lib/store/KoStore.cpp
+++ b/lib/store/KoStore.cpp
@@ -269,7 +269,7 @@ TQIODevice* KoStore::device() const
 
 TQByteArray KoStore::read( unsigned long int max )
 {
-  TQByteArray data; // Data is a TQArray<char>
+  TQByteArray data;
 
   if ( !m_bIsOpen )
   {