Vald,
you have the key element for running Vista. RAM, but folks be aware, Vista takes 1/2 of whateva amount of RAM you have for itself and only releases what it needs to. SO your 4Gb will turn into 2 as soon as the OS runs.
Go back to 2000 I say, best OS MS have ever had.
Chris (formerly R@nSiD)
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Winner SM VFX Challenge 1
3rd Place SM SteamPunk Challenge (May 2007)