Downgrading from Vista to XP

Hello, hello I'm in somewhat of a perdicament. Okay, to start off a few months back I purchased a new Toshiba satellite Laptop for school and such (basically between houses, etc whenever I need it it's there to use) Great stats on it, dual core 2gigs of ram 256 dedicated video with another 500+ shared video, and YET, my games aren't playing anywhere near top notch. I can't hardly play any older games such as Diablo/starcraft even older Roller coaster tycoon games won't run without having to screw around with compatibility, and the general processing of music/transferring files etc. isn't even that fast. And I have one thing to thank for this. Vista. I mean, Vista DOES have alot of great features, it's a very fun OS, cool options, runs very very smoothly, haven't crashed at all (then again I DO have a new computer) but I just downloaded SP1 and there hasn't been relatively any changes that I can notice, which sucks. Now, I would like to correctly downgrade, but I don't think that I have the correct version of Vista, so I may just have to do a reinstallation of the entire OS. http://www.computerworld.com/action/...8&pageNumber=2 I'll just need some time to think over this decision, but any advice would be great. Thanks!

ya, there is no differences you can see, just major speed boosts, if you honestly go back to XP, you might not regret it at first, but you eventually will, once you lose all your extra features...trust me....but whatever, be a douche, this is just why you were voted most retarded on the forum