Old gtk app, file open dialog freezes (Ubuntu 9.04)

[Jack Turner <jacob juvul com>]

Hello List

I just compiled an old gtk app of mine and everything work except
when I try opening a file. 
The dialog will hang with an hourglass and some of the folders in the
left is missing.

I use this code:

filedialog = gtk_file_chooser_dialog_new ("Open File", parent_window,
          GTK_FILE_CHOOSER_ACTION_OPEN,
          GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL, GTK_STOCK_OPEN,
          GTK_RESPONSE_ACCEPT, NULL);
        
gtk_dialog_set_default_response(filedialog, GTK_RESPONSE_ACCEPT);

GtkFileFilter *filter;
filter = gtk_file_filter_new();
        
gtk_file_filter_add_pattern(filter, "*.xml");
                gtk_file_chooser_set_filter(GTK_FILE_CHOOSER(filedialog), filter);
gtk_widget_show(filedialog);

if (gtk_dialog_run (GTK_DIALOG (filedialog)) == GTK_RESPONSE_ACCEPT)
  {     
...


Can anyone tell me whats wrong?
The system is Ubuntu 9.04