Only have 1GB of RAM on my Vista PC but all runs fine for me as I don't do all these heavy things which require loads of RAM.
Hi jakehard Ram is Increasing your working capacit and take effect on computer speed so maximum ram should be used in PC to enhance speed more than 2or3gb
i have 2gb ram in my labtop and 512mb RAM in my pc, And its ok for me becaz i am not doing any graphic works.
original pc was with 512ram now its 2gb and im happy with its performance. I reinstall my windows monthly to keep my pc fast.