Yhee.... My problem is solved now .... there was some problem with my DVD burner ( I'm using IBM Thinkpad R51) when I disconnect the DVD burner system does not seem to be freeze, now again I've attached it to my laptop everything is fine ..... I think DVD burner was not attached/connected properly Thnx for your support Regards T.c. -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines