In reply to tom_in_edinburgh:
Thanks for the reply.
This is the general minimum requirements.
1 GHz Dual Core Processor
Operating System Windows 7 and Windows 8/8.1*
Windows Vista (UK only) and Mac OSX may be supported for a
limited set of opportunities.
Memory Windows 7: 2 GB of RAM
Windows 8/8.1: 2 GB of RAM
Monitor 1280 x 1024 (SXGA) screen resolution
1920 x 1080 (Full HD or 1080p) is recommended
What I wrote were the recommended requirements but are from 2010 and US requirements.
I am happy to buy a new computer if this is what is required, but I have no idea what much of this stuff means to be honest. And thankfully once set up I should not have much need to know. But if you can explain why it will bring me pain and inconvenience I'd like to understand. And what you thin may be alternative preference maybe.