Then thats pretty abnormal, actually very abnormal. I have a friend who is running it on a athlon xp 1800+ with only 512 mb of ram w/o a hiccup and the Vista at most is only taking up %40 of system resources, when he plays a game those resources are released to the game. ANother guy got it to work decently on a 1 ghz computer with 384 megs of ram.
Both computers got a Vista experience rating of 1. Neither would play a DVD decently. Vista is due for lots of updates and service packs. That will bog it down even more --->>
2.5ghz-1024mb-64mb video card
2.8ghz-1024mb-256mb video card