About This Game Portal™ is a new single player game from Valve. Set in the mysterious Aperture Science Laboratories, Portal has been called one of the most innovative new games on the horizon and will offer gamers hours of unique gameplay.

The game is designed to change the way players approach, manipulate, and surmise the possibilities in a given environment; similar to how Half-Life® 2's Gravity Gun innovated new ways to leverage an object in any given situation. Players must solve physical puzzles and challenges by opening portals to maneuvering objects, and themselves, through space.

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Reply by spacetimezi on February 6, 2012 Yes XP is not perfect but hardly slow compared to the bloated and rushed VISTA. If you perform a clean install with XP and your computer is still slow then its your hardware or you have the wrong drivers installed. This is not XP's fault. The next step is to buy a new computer with 7. You can get a new one for a couple hundred and if you need a great computer for tech then you can build your own for a few hundred as well. I'm sure there are techs in your town that can help you. Either way the rule of thumb is XP for old computers, and 7 for new ones.

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