Hi Simon,
That's really good to know, thanks. I'll persist with the demo and explore the program some more, but I'm sure it'll cover my needs. I have heard it said that PixInsight really needs a quad core processor with 16Gig of RAM to run sweetly
. MaximDL seems to be the software of choice for many, but it's a little on the pricey side for a beginner.
Thanks again for your comments.