Quote Originally Posted by Redrobes View Post
Even with Vista that ought to be easily enough to hold a large image. 7K x 3K is 80Mb or thereabouts in memory and even if you had 10 layers and some undo that would be only be about a 1Gb. Theres probably something else at play here like anti virus or something else thats thrashing your system. You should look at your processes and see how much CPU and memory they are all burning.
Ah yes... antivirus... I didn't even think of that. Thanks!

I'll bet if I shut that down, at least while working on maps, that ought to help at least some.