Just to follow up:
Disk was only installed 10 weeks ago, so showed no problems
DLNA database reset had no effect
Disconnecting from the network had no effect
System flush worked - the box is stable again.
The network connection is wireless. I've had dnla-filter installed for ages and it's only in the last week that the random reboots have been happening. As far as I know nothing has changed on the network but I will triple check with the kids just in case one of them is 'trying' something...
"Home moves to channel 12 in preparation for the split of UKTV. The channels will be split between BBC Studios and Discovery. Home is to be taken over by Discovery. Once under Discovery's ownership, Discovery will have control over what goes on channel 12 - expected to be Quest."
That was indeed the case...
Remembered that I'd recently been playing around with static vs DHCP modes under 'network settings' and had obviously screwed something up. Reverted to DHCP and all is good again.
Thanks for the prompt.
When I try to check for updated packages, I get the following error message :
!! ERROR - No network connectivity to package repository !!
Check your Internet connection and DNS service and then try again.
I'm not sure what this means, can anyone explain?