Well, I wanted a CAD package for my ubuntu installation - but which one. I looked around on google to see if there was anything out there and it seemed that QCad was popular for ubuntu but many posts were indicating that there was only a 32 bit version available and it had issues running on 64 bit ubuntu. But of course I then remembered seeing QCad in the list of applications listed in "Add/Remove Programs". Strange since I was running the 64 bit version! So I tried it and - well - works "out of the box"!
Now I just have to work out how it works! :D