I don't run RedHat, but I'd have to say that RAM isn't the solution 
here.  There's no excuse an image should cause a machine to reboot 
unless there is a bus error; in which, you're machine's memory isn't 
of good quality or worse isn't fully ATX compliant.
I would definitely follow Russell's advice and forward RedHat the 
post with the directions to open the picture.  I'm leaning to a 
kernel issue as well, but it may be your hardware.
Mario
>I was thinking that also, but thought maybe there was a simpler answer.
>
>Man I should have bought more ram when it was so cheap!!
>
>Seth
>
>On Sun, 2002-04-21 at 21:01, Russell Hires wrote:
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>>  Advice: Hmmm...I noticed that it was taking forever to open the pic, so I
>>  just quit Konqueror.  A pic that big shouldn't kill your machine, though.
>>  Sounds like a kernel problem? Since you're dealing with a beta, I'd let
>>  RedHat know...
>>
>>  Russell
>>
>>  On Sunday 21 April 2002 16:25 pm, you wrote:
>>  > be careful opening that large earth image. I tried to open it in the
>>  > gimp and next thing my PC was rebooting!
>>  > I have 256MB of ram and a gig of sswap space.
>>  > Now I know the image was larger than my ram but I thought it might crash
>>  > the gimp, maybe even kill X but to just suddenly reboot is a bad thing.
>>  >
>>  > I using RH7.3 beta2 any advise? (besides dont open such big images?)
>>  >
>>  > Seth
>>  >
>>  > On Sun, 2002-04-21 at 13:42, Seth Hollen wrote:
>>  > > ftp://sdcd.gsfc.nasa.gov/pub/EARTHVIZ/
>>  > >
>>  > > the two pics are
>>  > > land_shallow_topo_east.tif
>>  > > land_shallow_topo_west.tif
>>  > >
>>  > > I thought they were neat.
>>  > > --
>>  > > Take care,
>>  > >
>>  > > Seth
>>  > > seth@hollen.org
>>  > > 727-919-1598
>>
>>  - --
>>  Linux -- the OS for the Renaissance Man
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>>
>--
>Take care,
>
>Seth
>seth@hollen.org
>727-919-1598
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