Yeah Vista ran slow just being Vista. Plus add that I have obg so the ram is shared with the graphics, for noodles that means less than 512 more like 448 for Vista to actually use.

But, XP is great especially speed wise. Although dualcore probably does help I can't really tell how much is the cpu and how much is the gpu. But, here's some stuff I need to add/change about what I said above.
ZeroGS is above 30fps at times in menus, whiles its paused, 2D, but the 3D slows down to 4-5fps. I'm thinking its because I have obg and not a regular card. Question what's a good card in the 75-150 range for PCI Express. I really want a AllNWonder but seems most places stopped selling them
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Acer Aspire 180
AMD 4200 X2
Geforce 6100 onboard graphics card
512MB 533Mhz
This comp came with Vista, but, I killed it for a better XP