Did this laptop come from the factory with Linpus or did you buy it from someone who tried to install Linpus? All the ads I've seen so far seem to be for the Acer Travelmate 5330 with some form of Vista; but that's not necessarily a complete indication.
If it came from the factory that way, then someone screwed up the installation. There's no way it should come to you only booting to the command line as a root user
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