diff --git a/context/context_object.go b/context/context_object.go
index eb94d33..a74577f 100644
--- a/context/context_object.go
+++ b/context/context_object.go
@@ -11,6 +11,7 @@ package context
 
 import (
     // stdlib
+    "errors"
     "fmt"
 
     // local
@@ -43,14 +44,19 @@ type Context struct {
     Requester *requester.Requester
 }
 
-func (ctx *Context) Close() {
+func (ctx *Context) Close() error {
     fmt.Println("Closing URTrator...")
 
+    launched := ctx.Launcher.CheckForLaunchedUrbanTerror()
+    if launched != nil {
+        return errors.New("Urban Terror is launched!")
+    }
     ctx.Cache.FlushServers()
     ctx.Database.Close()
 
     // At last, close main window.
     gtk.MainQuit()
+    return nil
 }
 
 func (ctx *Context) initializeCache() {
diff --git a/launcher/launcher_object.go b/launcher/launcher_object.go
index daa6206..b050739 100644
--- a/launcher/launcher_object.go
+++ b/launcher/launcher_object.go
@@ -11,6 +11,7 @@ package launcher
 
 import (
     // stdlib
+    "errors"
     "fmt"
     "os"
     "os/exec"
@@ -19,9 +20,30 @@ import (
 
     // local
     "github.com/pztrn/urtrator/datamodels"
+
+    // Github
+    "github.com/mattn/go-gtk/gtk"
 )
 
-type Launcher struct {}
+type Launcher struct {
+    // Flags.
+    // Is Urban Terror launched ATM?
+    launched bool
+}
+
+func (l *Launcher) CheckForLaunchedUrbanTerror() error {
+    if l.launched {
+        mbox_string := "Game is launched.\n\nCannot quit, because game is launched.\nQuit Urban Terror to exit URTrator!"
+        m := gtk.NewMessageDialog(nil, gtk.DIALOG_MODAL, gtk.MESSAGE_ERROR, gtk.BUTTONS_OK, mbox_string)
+        m.Response(func() {
+            m.Destroy()
+        })
+        m.Run()
+        return errors.New("User didn't select valid profile, mismatch with server's version.")
+    }
+
+    return nil
+}
 
 func (l *Launcher) findFreeDisplay() string {
     current_display_raw := os.Getenv("DISPLAY")
diff --git a/ui/mainwindow.go b/ui/mainwindow.go
index 715cf6d..a2fbb9c 100644
--- a/ui/mainwindow.go
+++ b/ui/mainwindow.go
@@ -319,9 +319,10 @@ func (m *MainWindow) hideOfflineFavoriteServers() {
 
 // Main window initialization.
 func (m *MainWindow) Initialize() {
+    gtk.Init(nil)
+
     m.initializeStorages()
 
-    gtk.Init(nil)
     m.window = gtk.NewWindow(gtk.WINDOW_TOPLEVEL)
     m.window.SetTitle("URTrator")
     m.window.Connect("destroy", m.Close)
@@ -950,7 +951,8 @@ func (m *MainWindow) loadAllServers() {
     fmt.Println("Loading all servers...")
     // ToDo: do it without clearing.
     for _, server := range ctx.Cache.Servers {
-        if m.all_servers_hide_offline.GetActive() && server.Server.Name == "" && server.Server.Players == "" {
+        ping, _ := strconv.Atoi(server.Server.Ping)
+        if m.all_servers_hide_offline.GetActive() && ping > 9999 {
             continue
         }
         iter := new (gtk.TreeIter)
@@ -1076,8 +1078,15 @@ func (m *MainWindow) showShortServerInformation() {
     model.GetValue(iter, 7, srv_address_gval)
     srv_address := srv_address_gval.GetString()
 
+    var srv_ping_raw string
+    srv_ping_gval := glib.ValueFromNative(srv_ping_raw)
+    model.GetValue(iter, 7, srv_ping_gval)
+    srv_ping := srv_ping_gval.GetString()
+
+    ping, _ := strconv.Atoi(srv_ping)
+
     // Getting server information from cache.
-    if len(srv_address) > 0 {
+    if len(srv_address) > 0 && ping < 1000 {
         server_info := ctx.Cache.Servers[srv_address].Server
         parsed_general_data := ioq3dataparser.ParseInfoToMap(server_info.ExtendedConfig)
         parsed_players_info := ioq3dataparser.ParsePlayersInfoToMap(server_info.PlayersInfo)