Since updating to to Kernel "2.6.19-1.2911.6.4.fc6 #1 SMP Sat Feb 24 14:39:04 EST 2007 i686 athlon i386 GNU/Linux" My FC6 Desktop has locked up completely 3 times !! 2.6.19-1.2911.6.5.fc6 :- The last thing logged before complete lockup (no return ping) in /var/messages :- Mar 8 12:08:16 ldesk pcscd: pcscdaemon.c:529:signal_trap() Preparing for suicide Mar 8 12:08:16 ldesk pcscd: hotplug_libusb.c:361:HPEstablishUSBNotifications() Hotplug stopped Mar 8 12:08:17 ldesk pcscd: readerfactory.c:1350:RFCleanupReaders() entering cleaning function Mar 8 12:08:17 ldesk pcscd: pcscdaemon.c:489:at_exit() cleaning /var/run Mar 8 12:08:17 ldesk kernel: Kernel logging (proc) stopped. Mar 8 12:08:17 ldesk kernel: Kernel log daemon terminating. Mar 8 12:08:17 ldesk hcid[2127]: Can't open system message bus connection: Failed to connect to socket /var/run/dbus/system_bus_socket: Connection refused Mar 8 12:08:18 ldesk exiting on signal 15 Mar 8 12:09:38 ldesk syslogd 1.4.1: restart. Another time it logged :- Mar 8 12:10:44 ldesk pcscd: winscard.c:219:SCardConnect() Reader E-Gate 0 0 Not Found Mar 8 12:15:33 ldesk syslogd 1.4.1: restart. I am presently back running 2.6.19-1.2911.6.4.fc6 to get some stability !! Loyal Fedora User Thanks to Fedora Developers --Andrew