[ubuntu-nz] missing desktop pic

[Reinhold Pam Muller]

I have  stored several pc's which get used once / twice a year.
they sit in a reasonable well ventilated dry environment and are connected to 
the grid eg plugged in and turned on at the wall  but not powered on - eg the 
motherboard / bios is live but the computer itself is not turned on
They have no problem cranking up even after 8 months sitting idle (apart from a 
forced hd check)

The PC has a picture file which also acts as a desktop image
I know when i shut it down several months back that it was still there and was 
also the desktop image
And yes - I have set the "remember my session" tick etc

This time when I cranked up the pc it has defaulted back to the standard Ubuntu 
desktop image.
The image itself is still there on the hard drive (my pic folder)
It has also "lost" some ticks in the right places in the xchat program used last 
- which I know i have put there before shutting down

Question  - where exactly does Ubuntu store the information (to call up this 
particular image for desktop)
more to the point where does it store the info to link a image - or make a 
particular as a desktop image
Is that written back solid to the HD??
Or stored in the RAM until changes are made to it (and does this mean that the 
ram will store the info for only so long eg degrade over time if not used) 

It couldn't be in the bios could it . . . 

I'm curious - I would not have expected Linux to "loose" a desktop image like 
that
I should say this happened to all 30 computers - eg all 30 have defaulted back 
to the standard Ubuntu desktop image - with 

ub 7.1 - through to 9.4 as distros used

Any bright ideas???
Cheers
Reinhold
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