added more information on error message

src/clientsettingsdlg.cpp

@@ -373,9 +373,10 @@ void CClientSettingsDlg::OnSoundCrdSelection ( int iSndDevIdx )
     if ( !strError.isEmpty() )
     {
         QMessageBox::critical ( this, APP_NAME,
-            QString ( "The selected audio device could not be used because "
-            "of the following error: " ) + strError +
-            QString ( " The previous driver will be selected." ), "Ok", 0 );
+            QString ( tr ( "The selected audio device could not be used "
+            "because of the following error: " ) ) + strError +
+            QString ( tr ( " The previous driver will be selected." ) ),
+            "Ok", 0 );
 
         // recover old selection
         cbSoundcard->setCurrentIndex ( pClient->GetSndCrdDev() );