[mythtvnz] mythfrontend closes unexpectedly

[noel at igrin.co.nz]

Hi All
on our frontend machine, mythtv closes unexpectedly with this log snip..

[   18.465627] ADDRCONF(NETDEV_UP): eth0: link is not ready
[   18.544478] Console: switching to colour frame buffer device 240x67
[   18.903895] lirc_dev: IR Remote Control driver registered, major 61
[   18.922957] lirc_mceusb: Windows Media Center Edition USB IR
Transceiver driver for LIRC 1.90
[   18.922962] lirc_mceusb: Daniel Melander <lirc at rajidae.se>, Martin
Blatter <martin_a_blatter at yahoo.com>, Dan Conti <dconti at acm.wwu.edu>
[   18.923004] usbcore: registered new interface driver lirc_mceusb
[   19.848047] lirc_serial: auto-detected active low receiver
[   19.848053] lirc_dev: lirc_register_driver: sample_rate: 0
[   19.848140] lirc_serial $Revision: 5.104 $ registered
[   19.890077] tg3: eth0: Link is up at 100 Mbps, full duplex.
[   19.890082] tg3: eth0: Flow control is off for TX and off for RX.
[   19.890331] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[   21.238583] svc: failed to register lockdv1 RPC service (errno 97).
[   21.245030] NFSD: Using /var/lib/nfs/v4recovery as the NFSv4 state
recovery directory
[   21.257387] NFSD: starting 90-second grace period
[   30.636025] eth0: no IPv6 routers present
[   31.222536] [drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[   32.092067] [drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!
[   84.580038] Clocksource tsc unstable (delta = -87096854 ns)
[  158.444048] usb 1-7: new high speed USB device using ehci_hcd and
address 3
[  158.580332] usb 1-7: configuration #1 chosen from 1 choice
[  158.634361] Initializing USB Mass Storage driver...
[  158.6345

At 21s mark there is the error.. but I don't know what it is!!
I have recently changed the back end machine, but the system worked for a
week since this.  Then a few days ago the power-off via remote stopped
working, & now the frontend menu closes as soon as it opens.

Cheers Noel