Laptop requirements for photographers?
I'm an enthusiastic amateur photographer (I use a Canon G12 and a Lumix FX47) who enjoys doing a certain amount of post-processing before printing images--I also like seeing my images on my computer. Currently I have a four-year-old Dell with a 15" screen, and it's decent. I just bought a new laptop, though (a Toshiba 17"), hoping to have an even crisper image, and was shocked to see that I could see the individual squares making up the screen--and looking far coarser than the picture on my old laptop. I know that for really high-end photo viewing and processing a desktop is better, but surely there's a laptop out there that doesn't look worse than one I got four years ago.
So my question is, what technical specs are necessary to get a laptop that shows decent images? (Or are there no rules, and should I just browse some models in stores?)