diff --git a/packager/installpkgsetdlg.lfm b/packager/installpkgsetdlg.lfm
index 0b48b1cc68..6381419b19 100644
--- a/packager/installpkgsetdlg.lfm
+++ b/packager/installpkgsetdlg.lfm
@@ -13,6 +13,7 @@ object InstallPkgSetDialog: TInstallPkgSetDialog
   OnCreate = InstallPkgSetDialogCreate
   OnDestroy = InstallPkgSetDialogDestroy
   OnResize = InstallPkgSetDialogResize
+  OnShow = InstallPkgSetDialogShow
   Position = poScreenCenter
   LCLVersion = '1.3'
   object InstallPkgGroupBox: TGroupBox
@@ -167,7 +168,6 @@ object InstallPkgSetDialog: TInstallPkgSetDialog
       Height = 25
       Top = 3
       Width = 255
-      UseFormActivate = True
       ButtonWidth = 23
       NumGlyphs = 1
       Anchors = [akTop, akLeft, akRight]
diff --git a/packager/installpkgsetdlg.pas b/packager/installpkgsetdlg.pas
index a90013db9f..7e3a2f08f6 100644
--- a/packager/installpkgsetdlg.pas
+++ b/packager/installpkgsetdlg.pas
@@ -92,6 +92,7 @@ type
     procedure InstallTreeViewDblClick(Sender: TObject);
     procedure InstallPkgSetDialogCreate(Sender: TObject);
     procedure InstallPkgSetDialogDestroy(Sender: TObject);
+    procedure InstallPkgSetDialogShow(Sender: TObject);
     procedure InstallPkgSetDialogResize(Sender: TObject);
     procedure InstallTreeViewSelectionChanged(Sender: TObject);
     procedure SaveAndExitButtonClick(Sender: TObject);
@@ -225,6 +226,21 @@ begin
   UpdateButtonStates;
 end;
 
+procedure TInstallPkgSetDialog.InstallPkgSetDialogDestroy(Sender: TObject);
+begin
+  LPKInfoCache.EndLPKReader;
+  LPKInfoCache.RemoveOnQueueEmpty(@OnAllLPKParsed);
+  ClearNewInstalledPackages;
+  FreeAndNil(FNewInstalledPackages);
+  IdleConnected:=false;
+end;
+
+procedure TInstallPkgSetDialog.InstallPkgSetDialogShow(Sender: TObject);
+begin
+  InstalledFilterEdit.Filter:='';    // (filter) - text is shown after this.
+  AvailableFilterEdit.Filter:='';
+end;
+
 procedure TInstallPkgSetDialog.SaveAndRebuildButtonClick(Sender: TObject);
 begin
   if not CheckSelection then exit;
@@ -398,15 +414,6 @@ begin
     AddToInstall;
 end;
 
-procedure TInstallPkgSetDialog.InstallPkgSetDialogDestroy(Sender: TObject);
-begin
-  LPKInfoCache.EndLPKReader;
-  LPKInfoCache.RemoveOnQueueEmpty(@OnAllLPKParsed);
-  ClearNewInstalledPackages;
-  FreeAndNil(FNewInstalledPackages);
-  IdleConnected:=false;
-end;
-
 procedure TInstallPkgSetDialog.InstallPkgSetDialogResize(Sender: TObject);
 var
   w: Integer;