specs of laptops

I take it by reading a thread "LX90 First Light (longish)", most people here
have a laptop to go out with to do star gazing.

I have one too, its a 700Mhz one, capable of running my starry night
software slowly, but one concern i have about using that with (hopefully my
LX90), is the light, is there sotware out there to run programs a shade of
red.

Also, what are the specs of your laptops?

stuart