diff -rup virt-viewer-0.0.3.orig/src/main.c virt-viewer-0.0.3.new/src/main.c
--- virt-viewer-0.0.3.orig/src/main.c	2008-03-10 14:49:48.000000000 +0000
+++ virt-viewer-0.0.3.new/src/main.c	2009-05-07 12:29:19.000000000 +0100
@@ -306,7 +306,7 @@ static void viewer_credential(GtkWidget 
                                 switch (g_value_get_enum(cred)) {
                                 case VNC_DISPLAY_CREDENTIAL_USERNAME:
                                 case VNC_DISPLAY_CREDENTIAL_PASSWORD:
-                                        data[i] = gtk_entry_get_text(GTK_ENTRY(entry[row]));
+                                        data[i] = gtk_entry_get_text(GTK_ENTRY(entry[row++]));
                                         break;
                                 }
                         }
@@ -795,7 +795,10 @@ viewer_start (const char *uri, const cha
 
 	verbose = set_verbose;
 
-	conn = virConnectOpenReadOnly(uri);
+	/* XXX Write a graphical auth prompter */
+	conn = virConnectOpenAuth(uri,
+				  virConnectAuthPtrDefault,
+				  VIR_CONNECT_RO);
 	if (!conn) {
 		fprintf(stderr, "unable to connect to libvirt %s\n",
 			uri ? uri : "xen");