Just like Georgina, I just received my brand new shiny computer (Dell XPS 15). Amazing machine and while I am very excited about the hi resolution screen (like the Mac retinal display), I was less that excited to see that Windows 8.1 can't open Photoshop CS at that resolution!!! I know...a few expletives popped into my head too! I've found a hack which works ok until Adobe and MS decide to play nicely in the sandbox and find a solution to the scaling problem.
In the meantime, I now also have to contend with moving my entire ACDSee database with all the tagging over to the new computer. Has anyone done this and do you have any tips or advice. I read something about embedding the tags into the metadata...or something like that??