[mythtvnz] mythfrontend closes unexpectedly

[noel at igrin.co.nz]

>
> That is not your mythfrontend log. Try giving us that...
>
> I do see a radeon error, presumably you are using an ATi video card, tsk
> tsk.
>
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Well this machine has onboard video, and I use VGA to the TV.
Anyway here's frontend log snip..

2010-08-30 06:39:38.575 Found mainmenu.xml for theme 'Childish'
2010-08-30 06:39:38.679 Using NV NPOT texture extension
2010-08-30 06:39:39.079 MythContext: Connecting to backend server:
192.168.0.50:6543 (try 1 of 1)
2010-08-30 06:39:39.081 Using protocol version 56
drmRadeonCmdBuffer: -12. Kernel failed to parse or rejected command
stream. See dmesg for more info.