The third machine was a new, small Dell XPS M1210 laptop. In general, Vista ran smoothly and well on this Dell, but some operations were annoyingly slow, including creating a new message in the built-in Windows Mail program. This surprised me, because the Dell had two gigabytes of memory and a fast processor.
It just so happens that I've been using the exact same machine as mentioned above for about a months. And I've had no problems at all. Just to see, I started up the built-in Windows Mail program, and created a new message. No slow down. It might be worth mentioning that while I did this, I had a Windows 2003 Server installation in progress in Virtual PC 2007. No slow downs. Weird.
on TechBlog the writer says:
That's simply wrong. I have installed Vista on all kinds of computers, most of which have 1 GB of RAM, and I have never found a feature that's not available to me with unless the PC had 2 GB.
And its the same experience for me. No features that are only present when you have 2 GB of RAM.