I know that, but 1024x768 and 1280x800 resolutions are the most used for webdesign right now, because a few people use the traditional resolution of 800x600...
Besides, 800x600 is a very, very small resolution for designs now, because you don't have space to put things up :|.. and it's obsolete now..
I asked some people and they told me that, sorry if you are still using that resolution, but it's a good feedback, thanks
Also, you are talking about laptop's, it'll be the same, some people have those laptop, and the other don't....